Home / 9,160.50-13,732.56-3,315.78

Finding the Fourth Proportional to 9,160.50, 13,732.56 and 3,315.78

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Solution

The fourth proportional to 9,160.50, 13,732.56 and 3,315.78 is: 4,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.50 : 13,732.56 = 3,315.78 : x
  2. Step 2: Convert to fraction form
    9,160.50/13,732.56 = 3,315.78/x
  3. Step 3: Cross multiply
    9,160.50x = 13,732.56 × 3,315.78
  4. Step 4: Simplify right side
    9,160.50x = 45,534,147.80
  5. Step 5: Solve for x
    x = 45,534,147.80/9,160.50
  6. Step 6: Final answer
    x = 4,970.71

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1.5x scale

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.