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Finding the Fourth Proportional to 12,737.19, 19,105.77 and 8,353.62

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Solution

The fourth proportional to 12,737.19, 19,105.77 and 8,353.62 is: 12,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737.19 : 19,105.77 = 8,353.62 : x
  2. Step 2: Convert to fraction form
    12,737.19/19,105.77 = 8,353.62/x
  3. Step 3: Cross multiply
    12,737.19x = 19,105.77 × 8,353.62
  4. Step 4: Simplify right side
    12,737.19x = 159,602,411.04
  5. Step 5: Solve for x
    x = 159,602,411.04/12,737.19
  6. Step 6: Final answer
    x = 12,530.43

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Double scale
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Similar ratio
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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.