Home / 12,472.04-18,711.60-5,081.80

Finding the Fourth Proportional to 12,472.04, 18,711.60 and 5,081.80

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Solution

The fourth proportional to 12,472.04, 18,711.60 and 5,081.80 is: 7,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.04 : 18,711.60 = 5,081.80 : x
  2. Step 2: Convert to fraction form
    12,472.04/18,711.60 = 5,081.80/x
  3. Step 3: Cross multiply
    12,472.04x = 18,711.60 × 5,081.80
  4. Step 4: Simplify right side
    12,472.04x = 95,088,608.88
  5. Step 5: Solve for x
    x = 95,088,608.88/12,472.04
  6. Step 6: Final answer
    x = 7,624.14

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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.