Home / 13,129.56-19,694.40-4,363.80

Finding the Fourth Proportional to 13,129.56, 19,694.40 and 4,363.80

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Solution

The fourth proportional to 13,129.56, 19,694.40 and 4,363.80 is: 6,545.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.56 : 19,694.40 = 4,363.80 : x
  2. Step 2: Convert to fraction form
    13,129.56/19,694.40 = 4,363.80/x
  3. Step 3: Cross multiply
    13,129.56x = 19,694.40 × 4,363.80
  4. Step 4: Simplify right side
    13,129.56x = 85,942,422.72
  5. Step 5: Solve for x
    x = 85,942,422.72/13,129.56
  6. Step 6: Final answer
    x = 6,545.72

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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.