Home / 9,731.08-13,429.38-5,540.68

Finding the Fourth Proportional to 9,731.08, 13,429.38 and 5,540.68

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Solution

The fourth proportional to 9,731.08, 13,429.38 and 5,540.68 is: 7,646.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,731.08 : 13,429.38 = 5,540.68 : x
  2. Step 2: Convert to fraction form
    9,731.08/13,429.38 = 5,540.68/x
  3. Step 3: Cross multiply
    9,731.08x = 13,429.38 × 5,540.68
  4. Step 4: Simplify right side
    9,731.08x = 74,407,897.18
  5. Step 5: Solve for x
    x = 74,407,897.18/9,731.08
  6. Step 6: Final answer
    x = 7,646.42

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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.