Home / 10,359.28-15,530.24-4,115.36

Finding the Fourth Proportional to 10,359.28, 15,530.24 and 4,115.36

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Solution

The fourth proportional to 10,359.28, 15,530.24 and 4,115.36 is: 6,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.28 : 15,530.24 = 4,115.36 : x
  2. Step 2: Convert to fraction form
    10,359.28/15,530.24 = 4,115.36/x
  3. Step 3: Cross multiply
    10,359.28x = 15,530.24 × 4,115.36
  4. Step 4: Simplify right side
    10,359.28x = 63,912,528.49
  5. Step 5: Solve for x
    x = 63,912,528.49/10,359.28
  6. Step 6: Final answer
    x = 6,169.59

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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.