Home / 14,001.60-19,321.76-7,713.92

Finding the Fourth Proportional to 14,001.60, 19,321.76 and 7,713.92

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Solution

The fourth proportional to 14,001.60, 19,321.76 and 7,713.92 is: 10,644.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.60 : 19,321.76 = 7,713.92 : x
  2. Step 2: Convert to fraction form
    14,001.60/19,321.76 = 7,713.92/x
  3. Step 3: Cross multiply
    14,001.60x = 19,321.76 × 7,713.92
  4. Step 4: Simplify right side
    14,001.60x = 149,046,510.90
  5. Step 5: Solve for x
    x = 149,046,510.90/14,001.60
  6. Step 6: Final answer
    x = 10,644.96

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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.