Home / 8,330.41-12,498.86-3,139.93

Finding the Fourth Proportional to 8,330.41, 12,498.86 and 3,139.93

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Solution

The fourth proportional to 8,330.41, 12,498.86 and 3,139.93 is: 4,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.41 : 12,498.86 = 3,139.93 : x
  2. Step 2: Convert to fraction form
    8,330.41/12,498.86 = 3,139.93/x
  3. Step 3: Cross multiply
    8,330.41x = 12,498.86 × 3,139.93
  4. Step 4: Simplify right side
    8,330.41x = 39,245,545.48
  5. Step 5: Solve for x
    x = 39,245,545.48/8,330.41
  6. Step 6: Final answer
    x = 4,711.12

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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.