Home / 15,592.32-21,519.36-10,001.28

Finding the Fourth Proportional to 15,592.32, 21,519.36 and 10,001.28

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Solution

The fourth proportional to 15,592.32, 21,519.36 and 10,001.28 is: 13,803.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.32 : 21,519.36 = 10,001.28 : x
  2. Step 2: Convert to fraction form
    15,592.32/21,519.36 = 10,001.28/x
  3. Step 3: Cross multiply
    15,592.32x = 21,519.36 × 10,001.28
  4. Step 4: Simplify right side
    15,592.32x = 215,221,144.78
  5. Step 5: Solve for x
    x = 215,221,144.78/15,592.32
  6. Step 6: Final answer
    x = 13,803.02

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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.