Home / 13,103.28-19,632-8,929.76

Finding the Fourth Proportional to 13,103.28, 19,632 and 8,929.76

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Solution

The fourth proportional to 13,103.28, 19,632 and 8,929.76 is: 13,379.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.28 : 19,632 = 8,929.76 : x
  2. Step 2: Convert to fraction form
    13,103.28/19,632 = 8,929.76/x
  3. Step 3: Cross multiply
    13,103.28x = 19,632 × 8,929.76
  4. Step 4: Simplify right side
    13,103.28x = 175,309,048.32
  5. Step 5: Solve for x
    x = 175,309,048.32/13,103.28
  6. Step 6: Final answer
    x = 13,379.02

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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.