Home / 9,363.32-12,921.48-5,171.57

Finding the Fourth Proportional to 9,363.32, 12,921.48 and 5,171.57

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Solution

The fourth proportional to 9,363.32, 12,921.48 and 5,171.57 is: 7,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.32 : 12,921.48 = 5,171.57 : x
  2. Step 2: Convert to fraction form
    9,363.32/12,921.48 = 5,171.57/x
  3. Step 3: Cross multiply
    9,363.32x = 12,921.48 × 5,171.57
  4. Step 4: Simplify right side
    9,363.32x = 66,824,247.86
  5. Step 5: Solve for x
    x = 66,824,247.86/9,363.32
  6. Step 6: Final answer
    x = 7,136.82

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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.