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Finding the Fourth Proportional to 9,510.40, 14,249.40 and 8,117.20

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Solution

The fourth proportional to 9,510.40, 14,249.40 and 8,117.20 is: 12,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,510.40 : 14,249.40 = 8,117.20 : x
  2. Step 2: Convert to fraction form
    9,510.40/14,249.40 = 8,117.20/x
  3. Step 3: Cross multiply
    9,510.40x = 14,249.40 × 8,117.20
  4. Step 4: Simplify right side
    9,510.40x = 115,665,229.68
  5. Step 5: Solve for x
    x = 115,665,229.68/9,510.40
  6. Step 6: Final answer
    x = 12,161.97

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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.