Home / 10,776.40-16,166.65-3,378.87

Finding the Fourth Proportional to 10,776.40, 16,166.65 and 3,378.87

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Solution

The fourth proportional to 10,776.40, 16,166.65 and 3,378.87 is: 5,068.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,776.40 : 16,166.65 = 3,378.87 : x
  2. Step 2: Convert to fraction form
    10,776.40/16,166.65 = 3,378.87/x
  3. Step 3: Cross multiply
    10,776.40x = 16,166.65 × 3,378.87
  4. Step 4: Simplify right side
    10,776.40x = 54,625,006.57
  5. Step 5: Solve for x
    x = 54,625,006.57/10,776.40
  6. Step 6: Final answer
    x = 5,068.95

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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.