Home / 10,621.76-15,839.12-9,883.04

Finding the Fourth Proportional to 10,621.76, 15,839.12 and 9,883.04

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Solution

The fourth proportional to 10,621.76, 15,839.12 and 9,883.04 is: 14,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.76 : 15,839.12 = 9,883.04 : x
  2. Step 2: Convert to fraction form
    10,621.76/15,839.12 = 9,883.04/x
  3. Step 3: Cross multiply
    10,621.76x = 15,839.12 × 9,883.04
  4. Step 4: Simplify right side
    10,621.76x = 156,538,656.52
  5. Step 5: Solve for x
    x = 156,538,656.52/10,621.76
  6. Step 6: Final answer
    x = 14,737.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.