Home / 11,211.89-15,472.08-6,432.63

Finding the Fourth Proportional to 11,211.89, 15,472.08 and 6,432.63

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Solution

The fourth proportional to 11,211.89, 15,472.08 and 6,432.63 is: 8,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.89 : 15,472.08 = 6,432.63 : x
  2. Step 2: Convert to fraction form
    11,211.89/15,472.08 = 6,432.63/x
  3. Step 3: Cross multiply
    11,211.89x = 15,472.08 × 6,432.63
  4. Step 4: Simplify right side
    11,211.89x = 99,526,165.97
  5. Step 5: Solve for x
    x = 99,526,165.97/11,211.89
  6. Step 6: Final answer
    x = 8,876.85

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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.