Home / 10,616.12-15,921.45-4,377.91

Finding the Fourth Proportional to 10,616.12, 15,921.45 and 4,377.91

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Solution

The fourth proportional to 10,616.12, 15,921.45 and 4,377.91 is: 6,565.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.12 : 15,921.45 = 4,377.91 : x
  2. Step 2: Convert to fraction form
    10,616.12/15,921.45 = 4,377.91/x
  3. Step 3: Cross multiply
    10,616.12x = 15,921.45 × 4,377.91
  4. Step 4: Simplify right side
    10,616.12x = 69,702,675.17
  5. Step 5: Solve for x
    x = 69,702,675.17/10,616.12
  6. Step 6: Final answer
    x = 6,565.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.