Home / 15,213.62-21,001.28-9,247.22

Finding the Fourth Proportional to 15,213.62, 21,001.28 and 9,247.22

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Solution

The fourth proportional to 15,213.62, 21,001.28 and 9,247.22 is: 12,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.62 : 21,001.28 = 9,247.22 : x
  2. Step 2: Convert to fraction form
    15,213.62/21,001.28 = 9,247.22/x
  3. Step 3: Cross multiply
    15,213.62x = 21,001.28 × 9,247.22
  4. Step 4: Simplify right side
    15,213.62x = 194,203,305.20
  5. Step 5: Solve for x
    x = 194,203,305.20/15,213.62
  6. Step 6: Final answer
    x = 12,765.10

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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.