Home / 9,231.72-12,740.36-5,253.60

Finding the Fourth Proportional to 9,231.72, 12,740.36 and 5,253.60

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Solution

The fourth proportional to 9,231.72, 12,740.36 and 5,253.60 is: 7,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.72 : 12,740.36 = 5,253.60 : x
  2. Step 2: Convert to fraction form
    9,231.72/12,740.36 = 5,253.60/x
  3. Step 3: Cross multiply
    9,231.72x = 12,740.36 × 5,253.60
  4. Step 4: Simplify right side
    9,231.72x = 66,932,755.30
  5. Step 5: Solve for x
    x = 66,932,755.30/9,231.72
  6. Step 6: Final answer
    x = 7,250.30

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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.