Home / 9,449.20-13,040.02-5,200.75

Finding the Fourth Proportional to 9,449.20, 13,040.02 and 5,200.75

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Solution

The fourth proportional to 9,449.20, 13,040.02 and 5,200.75 is: 7,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,449.20 : 13,040.02 = 5,200.75 : x
  2. Step 2: Convert to fraction form
    9,449.20/13,040.02 = 5,200.75/x
  3. Step 3: Cross multiply
    9,449.20x = 13,040.02 × 5,200.75
  4. Step 4: Simplify right side
    9,449.20x = 67,817,858.01
  5. Step 5: Solve for x
    x = 67,817,858.01/9,449.20
  6. Step 6: Final answer
    x = 7,177.10

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Half scale
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Double scale
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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.