Home / 15,545.66-23,318.46-13,405.12

Finding the Fourth Proportional to 15,545.66, 23,318.46 and 13,405.12

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Solution

The fourth proportional to 15,545.66, 23,318.46 and 13,405.12 is: 20,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.66 : 23,318.46 = 13,405.12 : x
  2. Step 2: Convert to fraction form
    15,545.66/23,318.46 = 13,405.12/x
  3. Step 3: Cross multiply
    15,545.66x = 23,318.46 × 13,405.12
  4. Step 4: Simplify right side
    15,545.66x = 312,586,754.52
  5. Step 5: Solve for x
    x = 312,586,754.52/15,545.66
  6. Step 6: Final answer
    x = 20,107.65

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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.