Home / 9,223.48-12,728.97-5,245.30

Finding the Fourth Proportional to 9,223.48, 12,728.97 and 5,245.30

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Solution

The fourth proportional to 9,223.48, 12,728.97 and 5,245.30 is: 7,238.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,223.48 : 12,728.97 = 5,245.30 : x
  2. Step 2: Convert to fraction form
    9,223.48/12,728.97 = 5,245.30/x
  3. Step 3: Cross multiply
    9,223.48x = 12,728.97 × 5,245.30
  4. Step 4: Simplify right side
    9,223.48x = 66,767,234.52
  5. Step 5: Solve for x
    x = 66,767,234.52/9,223.48
  6. Step 6: Final answer
    x = 7,238.84

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Double scale
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Similar ratio
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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.