Home / 9,178.92-13,770.63-2,938.95

Finding the Fourth Proportional to 9,178.92, 13,770.63 and 2,938.95

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Solution

The fourth proportional to 9,178.92, 13,770.63 and 2,938.95 is: 4,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.92 : 13,770.63 = 2,938.95 : x
  2. Step 2: Convert to fraction form
    9,178.92/13,770.63 = 2,938.95/x
  3. Step 3: Cross multiply
    9,178.92x = 13,770.63 × 2,938.95
  4. Step 4: Simplify right side
    9,178.92x = 40,471,193.04
  5. Step 5: Solve for x
    x = 40,471,193.04/9,178.92
  6. Step 6: Final answer
    x = 4,409.15

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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.