Home / 18,199.90-25,115.80-10,242.14

Finding the Fourth Proportional to 18,199.90, 25,115.80 and 10,242.14

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Solution

The fourth proportional to 18,199.90, 25,115.80 and 10,242.14 is: 14,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.90 : 25,115.80 = 10,242.14 : x
  2. Step 2: Convert to fraction form
    18,199.90/25,115.80 = 10,242.14/x
  3. Step 3: Cross multiply
    18,199.90x = 25,115.80 × 10,242.14
  4. Step 4: Simplify right side
    18,199.90x = 257,239,539.81
  5. Step 5: Solve for x
    x = 257,239,539.81/18,199.90
  6. Step 6: Final answer
    x = 14,134.12

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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.