Home / 13,217.76-19,826.40-11,151

Finding the Fourth Proportional to 13,217.76, 19,826.40 and 11,151

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Solution

The fourth proportional to 13,217.76, 19,826.40 and 11,151 is: 16,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.76 : 19,826.40 = 11,151 : x
  2. Step 2: Convert to fraction form
    13,217.76/19,826.40 = 11,151/x
  3. Step 3: Cross multiply
    13,217.76x = 19,826.40 × 11,151
  4. Step 4: Simplify right side
    13,217.76x = 221,084,186.40
  5. Step 5: Solve for x
    x = 221,084,186.40/13,217.76
  6. Step 6: Final answer
    x = 16,726.30

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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.