Home / 9,245.89-12,760.45-5,213.49

Finding the Fourth Proportional to 9,245.89, 12,760.45 and 5,213.49

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Solution

The fourth proportional to 9,245.89, 12,760.45 and 5,213.49 is: 7,195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245.89 : 12,760.45 = 5,213.49 : x
  2. Step 2: Convert to fraction form
    9,245.89/12,760.45 = 5,213.49/x
  3. Step 3: Cross multiply
    9,245.89x = 12,760.45 × 5,213.49
  4. Step 4: Simplify right side
    9,245.89x = 66,526,478.47
  5. Step 5: Solve for x
    x = 66,526,478.47/9,245.89
  6. Step 6: Final answer
    x = 7,195.25

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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.