Home / 11,158.48-15,398.57-6,442.66

Finding the Fourth Proportional to 11,158.48, 15,398.57 and 6,442.66

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Solution

The fourth proportional to 11,158.48, 15,398.57 and 6,442.66 is: 8,890.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.48 : 15,398.57 = 6,442.66 : x
  2. Step 2: Convert to fraction form
    11,158.48/15,398.57 = 6,442.66/x
  3. Step 3: Cross multiply
    11,158.48x = 15,398.57 × 6,442.66
  4. Step 4: Simplify right side
    11,158.48x = 99,207,680.29
  5. Step 5: Solve for x
    x = 99,207,680.29/11,158.48
  6. Step 6: Final answer
    x = 8,890.79

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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.