Home / 10,260.67-15,385.50-5,318.05

Finding the Fourth Proportional to 10,260.67, 15,385.50 and 5,318.05

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Solution

The fourth proportional to 10,260.67, 15,385.50 and 5,318.05 is: 7,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.67 : 15,385.50 = 5,318.05 : x
  2. Step 2: Convert to fraction form
    10,260.67/15,385.50 = 5,318.05/x
  3. Step 3: Cross multiply
    10,260.67x = 15,385.50 × 5,318.05
  4. Step 4: Simplify right side
    10,260.67x = 81,820,858.28
  5. Step 5: Solve for x
    x = 81,820,858.28/10,260.67
  6. Step 6: Final answer
    x = 7,974.22

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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.