Home / 9,315.25-13,974.77-4,121.13

Finding the Fourth Proportional to 9,315.25, 13,974.77 and 4,121.13

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Solution

The fourth proportional to 9,315.25, 13,974.77 and 4,121.13 is: 6,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.25 : 13,974.77 = 4,121.13 : x
  2. Step 2: Convert to fraction form
    9,315.25/13,974.77 = 4,121.13/x
  3. Step 3: Cross multiply
    9,315.25x = 13,974.77 × 4,121.13
  4. Step 4: Simplify right side
    9,315.25x = 57,591,753.41
  5. Step 5: Solve for x
    x = 57,591,753.41/9,315.25
  6. Step 6: Final answer
    x = 6,182.52

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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.