Home / 13,163.28-19,748.15-9,275.28

Finding the Fourth Proportional to 13,163.28, 19,748.15 and 9,275.28

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Solution

The fourth proportional to 13,163.28, 19,748.15 and 9,275.28 is: 13,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.28 : 19,748.15 = 9,275.28 : x
  2. Step 2: Convert to fraction form
    13,163.28/19,748.15 = 9,275.28/x
  3. Step 3: Cross multiply
    13,163.28x = 19,748.15 × 9,275.28
  4. Step 4: Simplify right side
    13,163.28x = 183,169,620.73
  5. Step 5: Solve for x
    x = 183,169,620.73/13,163.28
  6. Step 6: Final answer
    x = 13,915.20

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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.