Home / 13,179.40-19,747.23-9,275.61

Finding the Fourth Proportional to 13,179.40, 19,747.23 and 9,275.61

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Solution

The fourth proportional to 13,179.40, 19,747.23 and 9,275.61 is: 13,898.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.40 : 19,747.23 = 9,275.61 : x
  2. Step 2: Convert to fraction form
    13,179.40/19,747.23 = 9,275.61/x
  3. Step 3: Cross multiply
    13,179.40x = 19,747.23 × 9,275.61
  4. Step 4: Simplify right side
    13,179.40x = 183,167,610.51
  5. Step 5: Solve for x
    x = 183,167,610.51/13,179.40
  6. Step 6: Final answer
    x = 13,898.02

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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.