Home / 10,545.30-15,820.02-3,149.61

Finding the Fourth Proportional to 10,545.30, 15,820.02 and 3,149.61

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Solution

The fourth proportional to 10,545.30, 15,820.02 and 3,149.61 is: 4,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.30 : 15,820.02 = 3,149.61 : x
  2. Step 2: Convert to fraction form
    10,545.30/15,820.02 = 3,149.61/x
  3. Step 3: Cross multiply
    10,545.30x = 15,820.02 × 3,149.61
  4. Step 4: Simplify right side
    10,545.30x = 49,826,893.19
  5. Step 5: Solve for x
    x = 49,826,893.19/10,545.30
  6. Step 6: Final answer
    x = 4,725.03

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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.