Home / 7,456.08-11,171.16-3,987.12

Finding the Fourth Proportional to 7,456.08, 11,171.16 and 3,987.12

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Solution

The fourth proportional to 7,456.08, 11,171.16 and 3,987.12 is: 5,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.08 : 11,171.16 = 3,987.12 : x
  2. Step 2: Convert to fraction form
    7,456.08/11,171.16 = 3,987.12/x
  3. Step 3: Cross multiply
    7,456.08x = 11,171.16 × 3,987.12
  4. Step 4: Simplify right side
    7,456.08x = 44,540,755.46
  5. Step 5: Solve for x
    x = 44,540,755.46/7,456.08
  6. Step 6: Final answer
    x = 5,973.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.