Home / 9,224.07-12,730.30-5,245.78

Finding the Fourth Proportional to 9,224.07, 12,730.30 and 5,245.78

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Solution

The fourth proportional to 9,224.07, 12,730.30 and 5,245.78 is: 7,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,224.07 : 12,730.30 = 5,245.78 : x
  2. Step 2: Convert to fraction form
    9,224.07/12,730.30 = 5,245.78/x
  3. Step 3: Cross multiply
    9,224.07x = 12,730.30 × 5,245.78
  4. Step 4: Simplify right side
    9,224.07x = 66,780,353.13
  5. Step 5: Solve for x
    x = 66,780,353.13/9,224.07
  6. Step 6: Final answer
    x = 7,239.79

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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.