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Finding the Fourth Proportional to 10,773.80, 16,128.30 and 9,607.40

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Solution

The fourth proportional to 10,773.80, 16,128.30 and 9,607.40 is: 14,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,773.80 : 16,128.30 = 9,607.40 : x
  2. Step 2: Convert to fraction form
    10,773.80/16,128.30 = 9,607.40/x
  3. Step 3: Cross multiply
    10,773.80x = 16,128.30 × 9,607.40
  4. Step 4: Simplify right side
    10,773.80x = 154,951,029.42
  5. Step 5: Solve for x
    x = 154,951,029.42/10,773.80
  6. Step 6: Final answer
    x = 14,382.21

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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.