Home / 10,321.11-15,519.02-9,509.18

Finding the Fourth Proportional to 10,321.11, 15,519.02 and 9,509.18

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Solution

The fourth proportional to 10,321.11, 15,519.02 and 9,509.18 is: 14,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.11 : 15,519.02 = 9,509.18 : x
  2. Step 2: Convert to fraction form
    10,321.11/15,519.02 = 9,509.18/x
  3. Step 3: Cross multiply
    10,321.11x = 15,519.02 × 9,509.18
  4. Step 4: Simplify right side
    10,321.11x = 147,573,029.46
  5. Step 5: Solve for x
    x = 147,573,029.46/10,321.11
  6. Step 6: Final answer
    x = 14,298.17

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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.