Home / 10,217.32-15,296.10-7,761.76

Finding the Fourth Proportional to 10,217.32, 15,296.10 and 7,761.76

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Solution

The fourth proportional to 10,217.32, 15,296.10 and 7,761.76 is: 11,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.32 : 15,296.10 = 7,761.76 : x
  2. Step 2: Convert to fraction form
    10,217.32/15,296.10 = 7,761.76/x
  3. Step 3: Cross multiply
    10,217.32x = 15,296.10 × 7,761.76
  4. Step 4: Simplify right side
    10,217.32x = 118,724,657.14
  5. Step 5: Solve for x
    x = 118,724,657.14/10,217.32
  6. Step 6: Final answer
    x = 11,619.94

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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.