Home / 10,386.55-15,585.30-6,234.90

Finding the Fourth Proportional to 10,386.55, 15,585.30 and 6,234.90

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Solution

The fourth proportional to 10,386.55, 15,585.30 and 6,234.90 is: 9,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.55 : 15,585.30 = 6,234.90 : x
  2. Step 2: Convert to fraction form
    10,386.55/15,585.30 = 6,234.90/x
  3. Step 3: Cross multiply
    10,386.55x = 15,585.30 × 6,234.90
  4. Step 4: Simplify right side
    10,386.55x = 97,172,786.97
  5. Step 5: Solve for x
    x = 97,172,786.97/10,386.55
  6. Step 6: Final answer
    x = 9,355.64

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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.