Home / 10,260.03-15,390.15-3,239.91

Finding the Fourth Proportional to 10,260.03, 15,390.15 and 3,239.91

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Solution

The fourth proportional to 10,260.03, 15,390.15 and 3,239.91 is: 4,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.03 : 15,390.15 = 3,239.91 : x
  2. Step 2: Convert to fraction form
    10,260.03/15,390.15 = 3,239.91/x
  3. Step 3: Cross multiply
    10,260.03x = 15,390.15 × 3,239.91
  4. Step 4: Simplify right side
    10,260.03x = 49,862,700.89
  5. Step 5: Solve for x
    x = 49,862,700.89/10,260.03
  6. Step 6: Final answer
    x = 4,859.90

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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.