Home / 13,545.48-20,318.13-3,684.72

Finding the Fourth Proportional to 13,545.48, 20,318.13 and 3,684.72

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Solution

The fourth proportional to 13,545.48, 20,318.13 and 3,684.72 is: 5,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.48 : 20,318.13 = 3,684.72 : x
  2. Step 2: Convert to fraction form
    13,545.48/20,318.13 = 3,684.72/x
  3. Step 3: Cross multiply
    13,545.48x = 20,318.13 × 3,684.72
  4. Step 4: Simplify right side
    13,545.48x = 74,866,619.97
  5. Step 5: Solve for x
    x = 74,866,619.97/13,545.48
  6. Step 6: Final answer
    x = 5,527.06

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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.