Home / 12,724.40-19,080.53-5,704.47

Finding the Fourth Proportional to 12,724.40, 19,080.53 and 5,704.47

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Solution

The fourth proportional to 12,724.40, 19,080.53 and 5,704.47 is: 8,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.40 : 19,080.53 = 5,704.47 : x
  2. Step 2: Convert to fraction form
    12,724.40/19,080.53 = 5,704.47/x
  3. Step 3: Cross multiply
    12,724.40x = 19,080.53 × 5,704.47
  4. Step 4: Simplify right side
    12,724.40x = 108,844,282.45
  5. Step 5: Solve for x
    x = 108,844,282.45/12,724.40
  6. Step 6: Final answer
    x = 8,553.98

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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.