Home / 15,672.90-21,616.52-10,892.78

Finding the Fourth Proportional to 15,672.90, 21,616.52 and 10,892.78

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Solution

The fourth proportional to 15,672.90, 21,616.52 and 10,892.78 is: 15,023.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.90 : 21,616.52 = 10,892.78 : x
  2. Step 2: Convert to fraction form
    15,672.90/21,616.52 = 10,892.78/x
  3. Step 3: Cross multiply
    15,672.90x = 21,616.52 × 10,892.78
  4. Step 4: Simplify right side
    15,672.90x = 235,463,996.73
  5. Step 5: Solve for x
    x = 235,463,996.73/15,672.90
  6. Step 6: Final answer
    x = 15,023.64

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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.