Home / 9,540.08-13,171.40-7,775.88

Finding the Fourth Proportional to 9,540.08, 13,171.40 and 7,775.88

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Solution

The fourth proportional to 9,540.08, 13,171.40 and 7,775.88 is: 10,735.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.08 : 13,171.40 = 7,775.88 : x
  2. Step 2: Convert to fraction form
    9,540.08/13,171.40 = 7,775.88/x
  3. Step 3: Cross multiply
    9,540.08x = 13,171.40 × 7,775.88
  4. Step 4: Simplify right side
    9,540.08x = 102,419,225.83
  5. Step 5: Solve for x
    x = 102,419,225.83/9,540.08
  6. Step 6: Final answer
    x = 10,735.68

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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.