Home / 9,129.28-13,694.68-2,555.46

Finding the Fourth Proportional to 9,129.28, 13,694.68 and 2,555.46

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Solution

The fourth proportional to 9,129.28, 13,694.68 and 2,555.46 is: 3,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.28 : 13,694.68 = 2,555.46 : x
  2. Step 2: Convert to fraction form
    9,129.28/13,694.68 = 2,555.46/x
  3. Step 3: Cross multiply
    9,129.28x = 13,694.68 × 2,555.46
  4. Step 4: Simplify right side
    9,129.28x = 34,996,206.95
  5. Step 5: Solve for x
    x = 34,996,206.95/9,129.28
  6. Step 6: Final answer
    x = 3,833.40

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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.