Home / 14,568.95-21,860.28-7,179.66

Finding the Fourth Proportional to 14,568.95, 21,860.28 and 7,179.66

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Solution

The fourth proportional to 14,568.95, 21,860.28 and 7,179.66 is: 10,772.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,568.95 : 21,860.28 = 7,179.66 : x
  2. Step 2: Convert to fraction form
    14,568.95/21,860.28 = 7,179.66/x
  3. Step 3: Cross multiply
    14,568.95x = 21,860.28 × 7,179.66
  4. Step 4: Simplify right side
    14,568.95x = 156,949,377.90
  5. Step 5: Solve for x
    x = 156,949,377.90/14,568.95
  6. Step 6: Final answer
    x = 10,772.87

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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.