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Finding the Fourth Proportional to 10,553.96, 15,793.85 and 8,339.63

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Solution

The fourth proportional to 10,553.96, 15,793.85 and 8,339.63 is: 12,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.96 : 15,793.85 = 8,339.63 : x
  2. Step 2: Convert to fraction form
    10,553.96/15,793.85 = 8,339.63/x
  3. Step 3: Cross multiply
    10,553.96x = 15,793.85 × 8,339.63
  4. Step 4: Simplify right side
    10,553.96x = 131,714,807.16
  5. Step 5: Solve for x
    x = 131,714,807.16/10,553.96
  6. Step 6: Final answer
    x = 12,480.13

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1.5x scale

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.