Home / 9,363.13-12,921.20-5,171.38

Finding the Fourth Proportional to 9,363.13, 12,921.20 and 5,171.38

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Solution

The fourth proportional to 9,363.13, 12,921.20 and 5,171.38 is: 7,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.13 : 12,921.20 = 5,171.38 : x
  2. Step 2: Convert to fraction form
    9,363.13/12,921.20 = 5,171.38/x
  3. Step 3: Cross multiply
    9,363.13x = 12,921.20 × 5,171.38
  4. Step 4: Simplify right side
    9,363.13x = 66,820,435.26
  5. Step 5: Solve for x
    x = 66,820,435.26/9,363.13
  6. Step 6: Final answer
    x = 7,136.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.