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Finding the Fourth Proportional to 9,913.77, 14,872.47 and 8,081.14

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Solution

The fourth proportional to 9,913.77, 14,872.47 and 8,081.14 is: 12,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.77 : 14,872.47 = 8,081.14 : x
  2. Step 2: Convert to fraction form
    9,913.77/14,872.47 = 8,081.14/x
  3. Step 3: Cross multiply
    9,913.77x = 14,872.47 × 8,081.14
  4. Step 4: Simplify right side
    9,913.77x = 120,186,512.22
  5. Step 5: Solve for x
    x = 120,186,512.22/9,913.77
  6. Step 6: Final answer
    x = 12,123.19

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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.