Home / 10,304.28-15,435.90-7,679.88

Finding the Fourth Proportional to 10,304.28, 15,435.90 and 7,679.88

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Solution

The fourth proportional to 10,304.28, 15,435.90 and 7,679.88 is: 11,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,304.28 : 15,435.90 = 7,679.88 : x
  2. Step 2: Convert to fraction form
    10,304.28/15,435.90 = 7,679.88/x
  3. Step 3: Cross multiply
    10,304.28x = 15,435.90 × 7,679.88
  4. Step 4: Simplify right side
    10,304.28x = 118,545,859.69
  5. Step 5: Solve for x
    x = 118,545,859.69/10,304.28
  6. Step 6: Final answer
    x = 11,504.53

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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.