Home / 10,761.66-16,139.61-2,970.90

Finding the Fourth Proportional to 10,761.66, 16,139.61 and 2,970.90

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Solution

The fourth proportional to 10,761.66, 16,139.61 and 2,970.90 is: 4,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,761.66 : 16,139.61 = 2,970.90 : x
  2. Step 2: Convert to fraction form
    10,761.66/16,139.61 = 2,970.90/x
  3. Step 3: Cross multiply
    10,761.66x = 16,139.61 × 2,970.90
  4. Step 4: Simplify right side
    10,761.66x = 47,949,167.35
  5. Step 5: Solve for x
    x = 47,949,167.35/10,761.66
  6. Step 6: Final answer
    x = 4,455.55

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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.