Home / 10,686.30-16,031.78-4,115.58

Finding the Fourth Proportional to 10,686.30, 16,031.78 and 4,115.58

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Solution

The fourth proportional to 10,686.30, 16,031.78 and 4,115.58 is: 6,174.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.30 : 16,031.78 = 4,115.58 : x
  2. Step 2: Convert to fraction form
    10,686.30/16,031.78 = 4,115.58/x
  3. Step 3: Cross multiply
    10,686.30x = 16,031.78 × 4,115.58
  4. Step 4: Simplify right side
    10,686.30x = 65,980,073.13
  5. Step 5: Solve for x
    x = 65,980,073.13/10,686.30
  6. Step 6: Final answer
    x = 6,174.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.