Home / 10,510.77-15,767.16-3,489.30

Finding the Fourth Proportional to 10,510.77, 15,767.16 and 3,489.30

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Solution

The fourth proportional to 10,510.77, 15,767.16 and 3,489.30 is: 5,234.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.77 : 15,767.16 = 3,489.30 : x
  2. Step 2: Convert to fraction form
    10,510.77/15,767.16 = 3,489.30/x
  3. Step 3: Cross multiply
    10,510.77x = 15,767.16 × 3,489.30
  4. Step 4: Simplify right side
    10,510.77x = 55,016,351.39
  5. Step 5: Solve for x
    x = 55,016,351.39/10,510.77
  6. Step 6: Final answer
    x = 5,234.28

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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.