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Finding the Fourth Proportional to 8,957.88, 13,438.37 and 3,411.71

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Solution

The fourth proportional to 8,957.88, 13,438.37 and 3,411.71 is: 5,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.88 : 13,438.37 = 3,411.71 : x
  2. Step 2: Convert to fraction form
    8,957.88/13,438.37 = 3,411.71/x
  3. Step 3: Cross multiply
    8,957.88x = 13,438.37 × 3,411.71
  4. Step 4: Simplify right side
    8,957.88x = 45,847,737.06
  5. Step 5: Solve for x
    x = 45,847,737.06/8,957.88
  6. Step 6: Final answer
    x = 5,118.15

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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.