Home / 12,472.60-18,712.56-3,707.80

Finding the Fourth Proportional to 12,472.60, 18,712.56 and 3,707.80

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Solution

The fourth proportional to 12,472.60, 18,712.56 and 3,707.80 is: 5,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.60 : 18,712.56 = 3,707.80 : x
  2. Step 2: Convert to fraction form
    12,472.60/18,712.56 = 3,707.80/x
  3. Step 3: Cross multiply
    12,472.60x = 18,712.56 × 3,707.80
  4. Step 4: Simplify right side
    12,472.60x = 69,382,429.97
  5. Step 5: Solve for x
    x = 69,382,429.97/12,472.60
  6. Step 6: Final answer
    x = 5,562.79

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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.