Home / 8,958.30-12,321.35-7,186.02

Finding the Fourth Proportional to 8,958.30, 12,321.35 and 7,186.02

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Solution

The fourth proportional to 8,958.30, 12,321.35 and 7,186.02 is: 9,883.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.30 : 12,321.35 = 7,186.02 : x
  2. Step 2: Convert to fraction form
    8,958.30/12,321.35 = 7,186.02/x
  3. Step 3: Cross multiply
    8,958.30x = 12,321.35 × 7,186.02
  4. Step 4: Simplify right side
    8,958.30x = 88,541,412.34
  5. Step 5: Solve for x
    x = 88,541,412.34/8,958.30
  6. Step 6: Final answer
    x = 9,883.73

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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.