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Finding the Fourth Proportional to 9,411.88, 14,139.44 and 8,099.68

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Solution

The fourth proportional to 9,411.88, 14,139.44 and 8,099.68 is: 12,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,411.88 : 14,139.44 = 8,099.68 : x
  2. Step 2: Convert to fraction form
    9,411.88/14,139.44 = 8,099.68/x
  3. Step 3: Cross multiply
    9,411.88x = 14,139.44 × 8,099.68
  4. Step 4: Simplify right side
    9,411.88x = 114,524,939.38
  5. Step 5: Solve for x
    x = 114,524,939.38/9,411.88
  6. Step 6: Final answer
    x = 12,168.13

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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.