Home / 11,329.50-17,001.12-7,163.76

Finding the Fourth Proportional to 11,329.50, 17,001.12 and 7,163.76

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Solution

The fourth proportional to 11,329.50, 17,001.12 and 7,163.76 is: 10,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.50 : 17,001.12 = 7,163.76 : x
  2. Step 2: Convert to fraction form
    11,329.50/17,001.12 = 7,163.76/x
  3. Step 3: Cross multiply
    11,329.50x = 17,001.12 × 7,163.76
  4. Step 4: Simplify right side
    11,329.50x = 121,791,943.41
  5. Step 5: Solve for x
    x = 121,791,943.41/11,329.50
  6. Step 6: Final answer
    x = 10,749.98

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Double scale
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1.5x scale

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.