Home / 18,525.69-25,565.45-10,142.19

Finding the Fourth Proportional to 18,525.69, 25,565.45 and 10,142.19

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Solution

The fourth proportional to 18,525.69, 25,565.45 and 10,142.19 is: 13,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.69 : 25,565.45 = 10,142.19 : x
  2. Step 2: Convert to fraction form
    18,525.69/25,565.45 = 10,142.19/x
  3. Step 3: Cross multiply
    18,525.69x = 25,565.45 × 10,142.19
  4. Step 4: Simplify right side
    18,525.69x = 259,289,651.34
  5. Step 5: Solve for x
    x = 259,289,651.34/18,525.69
  6. Step 6: Final answer
    x = 13,996.22

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Half scale
Find fourth proportional to 37,051.38, 51,130.90 and 20,284.38
Double scale
Find fourth proportional to 18,526.69, 25,566.83 and 10,143.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.