Home / 10,326.48-15,491.88-5,129.52

Finding the Fourth Proportional to 10,326.48, 15,491.88 and 5,129.52

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Solution

The fourth proportional to 10,326.48, 15,491.88 and 5,129.52 is: 7,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,326.48 : 15,491.88 = 5,129.52 : x
  2. Step 2: Convert to fraction form
    10,326.48/15,491.88 = 5,129.52/x
  3. Step 3: Cross multiply
    10,326.48x = 15,491.88 × 5,129.52
  4. Step 4: Simplify right side
    10,326.48x = 79,465,908.30
  5. Step 5: Solve for x
    x = 79,465,908.30/10,326.48
  6. Step 6: Final answer
    x = 7,695.35

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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.