Home / 10,340.17-15,511.69-3,318.53

Finding the Fourth Proportional to 10,340.17, 15,511.69 and 3,318.53

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Solution

The fourth proportional to 10,340.17, 15,511.69 and 3,318.53 is: 4,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.17 : 15,511.69 = 3,318.53 : x
  2. Step 2: Convert to fraction form
    10,340.17/15,511.69 = 3,318.53/x
  3. Step 3: Cross multiply
    10,340.17x = 15,511.69 × 3,318.53
  4. Step 4: Simplify right side
    10,340.17x = 51,475,992.02
  5. Step 5: Solve for x
    x = 51,475,992.02/10,340.17
  6. Step 6: Final answer
    x = 4,978.25

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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.