Home / 15,872.20-21,922.32-10,557.52

Finding the Fourth Proportional to 15,872.20, 21,922.32 and 10,557.52

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Solution

The fourth proportional to 15,872.20, 21,922.32 and 10,557.52 is: 14,581.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.20 : 21,922.32 = 10,557.52 : x
  2. Step 2: Convert to fraction form
    15,872.20/21,922.32 = 10,557.52/x
  3. Step 3: Cross multiply
    15,872.20x = 21,922.32 × 10,557.52
  4. Step 4: Simplify right side
    15,872.20x = 231,445,331.85
  5. Step 5: Solve for x
    x = 231,445,331.85/15,872.20
  6. Step 6: Final answer
    x = 14,581.81

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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.