Home / 18,525.68-25,565.56-10,142.18

Finding the Fourth Proportional to 18,525.68, 25,565.56 and 10,142.18

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Solution

The fourth proportional to 18,525.68, 25,565.56 and 10,142.18 is: 13,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.68 : 25,565.56 = 10,142.18 : x
  2. Step 2: Convert to fraction form
    18,525.68/25,565.56 = 10,142.18/x
  3. Step 3: Cross multiply
    18,525.68x = 25,565.56 × 10,142.18
  4. Step 4: Simplify right side
    18,525.68x = 259,290,511.32
  5. Step 5: Solve for x
    x = 259,290,511.32/18,525.68
  6. Step 6: Final answer
    x = 13,996.27

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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.