Home / 9,731.10-13,427.67-5,540.70

Finding the Fourth Proportional to 9,731.10, 13,427.67 and 5,540.70

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Solution

The fourth proportional to 9,731.10, 13,427.67 and 5,540.70 is: 7,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,731.10 : 13,427.67 = 5,540.70 : x
  2. Step 2: Convert to fraction form
    9,731.10/13,427.67 = 5,540.70/x
  3. Step 3: Cross multiply
    9,731.10x = 13,427.67 × 5,540.70
  4. Step 4: Simplify right side
    9,731.10x = 74,398,691.17
  5. Step 5: Solve for x
    x = 74,398,691.17/9,731.10
  6. Step 6: Final answer
    x = 7,645.46

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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.