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Finding the Fourth Proportional to 14,600.70, 20,106.51 and 12,685.62

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Solution

The fourth proportional to 14,600.70, 20,106.51 and 12,685.62 is: 17,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,600.70 : 20,106.51 = 12,685.62 : x
  2. Step 2: Convert to fraction form
    14,600.70/20,106.51 = 12,685.62/x
  3. Step 3: Cross multiply
    14,600.70x = 20,106.51 × 12,685.62
  4. Step 4: Simplify right side
    14,600.70x = 255,063,545.39
  5. Step 5: Solve for x
    x = 255,063,545.39/14,600.70
  6. Step 6: Final answer
    x = 17,469.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.