Home / 15,244.43-21,008.81-10,988.13

Finding the Fourth Proportional to 15,244.43, 21,008.81 and 10,988.13

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Solution

The fourth proportional to 15,244.43, 21,008.81 and 10,988.13 is: 15,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,244.43 : 21,008.81 = 10,988.13 : x
  2. Step 2: Convert to fraction form
    15,244.43/21,008.81 = 10,988.13/x
  3. Step 3: Cross multiply
    15,244.43x = 21,008.81 × 10,988.13
  4. Step 4: Simplify right side
    15,244.43x = 230,847,562.90
  5. Step 5: Solve for x
    x = 230,847,562.90/15,244.43
  6. Step 6: Final answer
    x = 15,143.08

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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.