Home / 12,545.32-18,818.46-6,382.12

Finding the Fourth Proportional to 12,545.32, 18,818.46 and 6,382.12

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Solution

The fourth proportional to 12,545.32, 18,818.46 and 6,382.12 is: 9,573.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.32 : 18,818.46 = 6,382.12 : x
  2. Step 2: Convert to fraction form
    12,545.32/18,818.46 = 6,382.12/x
  3. Step 3: Cross multiply
    12,545.32x = 18,818.46 × 6,382.12
  4. Step 4: Simplify right side
    12,545.32x = 120,101,669.94
  5. Step 5: Solve for x
    x = 120,101,669.94/12,545.32
  6. Step 6: Final answer
    x = 9,573.42

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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.