Home / 13,660.14-20,472.93-6,641.76

Finding the Fourth Proportional to 13,660.14, 20,472.93 and 6,641.76

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Solution

The fourth proportional to 13,660.14, 20,472.93 and 6,641.76 is: 9,954.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.14 : 20,472.93 = 6,641.76 : x
  2. Step 2: Convert to fraction form
    13,660.14/20,472.93 = 6,641.76/x
  3. Step 3: Cross multiply
    13,660.14x = 20,472.93 × 6,641.76
  4. Step 4: Simplify right side
    13,660.14x = 135,976,287.56
  5. Step 5: Solve for x
    x = 135,976,287.56/13,660.14
  6. Step 6: Final answer
    x = 9,954.24

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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.