Home / 15,498.36-21,388.14-9,125.28

Finding the Fourth Proportional to 15,498.36, 21,388.14 and 9,125.28

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Solution

The fourth proportional to 15,498.36, 21,388.14 and 9,125.28 is: 12,593.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.36 : 21,388.14 = 9,125.28 : x
  2. Step 2: Convert to fraction form
    15,498.36/21,388.14 = 9,125.28/x
  3. Step 3: Cross multiply
    15,498.36x = 21,388.14 × 9,125.28
  4. Step 4: Simplify right side
    15,498.36x = 195,172,766.18
  5. Step 5: Solve for x
    x = 195,172,766.18/15,498.36
  6. Step 6: Final answer
    x = 12,593.12

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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.