Home / 8,646.29-12,971.13-3,098.15

Finding the Fourth Proportional to 8,646.29, 12,971.13 and 3,098.15

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Solution

The fourth proportional to 8,646.29, 12,971.13 and 3,098.15 is: 4,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.29 : 12,971.13 = 3,098.15 : x
  2. Step 2: Convert to fraction form
    8,646.29/12,971.13 = 3,098.15/x
  3. Step 3: Cross multiply
    8,646.29x = 12,971.13 × 3,098.15
  4. Step 4: Simplify right side
    8,646.29x = 40,186,441.55
  5. Step 5: Solve for x
    x = 40,186,441.55/8,646.29
  6. Step 6: Final answer
    x = 4,647.83

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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.