Home / 10,876.55-15,010.85-6,630.12

Finding the Fourth Proportional to 10,876.55, 15,010.85 and 6,630.12

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Solution

The fourth proportional to 10,876.55, 15,010.85 and 6,630.12 is: 9,150.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.55 : 15,010.85 = 6,630.12 : x
  2. Step 2: Convert to fraction form
    10,876.55/15,010.85 = 6,630.12/x
  3. Step 3: Cross multiply
    10,876.55x = 15,010.85 × 6,630.12
  4. Step 4: Simplify right side
    10,876.55x = 99,523,753.38
  5. Step 5: Solve for x
    x = 99,523,753.38/10,876.55
  6. Step 6: Final answer
    x = 9,150.31

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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.