Home / 9,349.44-12,902.13-5,157.78

Finding the Fourth Proportional to 9,349.44, 12,902.13 and 5,157.78

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Solution

The fourth proportional to 9,349.44, 12,902.13 and 5,157.78 is: 7,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,349.44 : 12,902.13 = 5,157.78 : x
  2. Step 2: Convert to fraction form
    9,349.44/12,902.13 = 5,157.78/x
  3. Step 3: Cross multiply
    9,349.44x = 12,902.13 × 5,157.78
  4. Step 4: Simplify right side
    9,349.44x = 66,546,348.07
  5. Step 5: Solve for x
    x = 66,546,348.07/9,349.44
  6. Step 6: Final answer
    x = 7,117.68

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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.