Home / 15,287.04-21,087.17-9,612.80

Finding the Fourth Proportional to 15,287.04, 21,087.17 and 9,612.80

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Solution

The fourth proportional to 15,287.04, 21,087.17 and 9,612.80 is: 13,260.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.04 : 21,087.17 = 9,612.80 : x
  2. Step 2: Convert to fraction form
    15,287.04/21,087.17 = 9,612.80/x
  3. Step 3: Cross multiply
    15,287.04x = 21,087.17 × 9,612.80
  4. Step 4: Simplify right side
    15,287.04x = 202,706,747.78
  5. Step 5: Solve for x
    x = 202,706,747.78/15,287.04
  6. Step 6: Final answer
    x = 13,260.04

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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.