Home / 9,387.18-12,885.29-8,301.15

Finding the Fourth Proportional to 9,387.18, 12,885.29 and 8,301.15

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Solution

The fourth proportional to 9,387.18, 12,885.29 and 8,301.15 is: 11,394.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.18 : 12,885.29 = 8,301.15 : x
  2. Step 2: Convert to fraction form
    9,387.18/12,885.29 = 8,301.15/x
  3. Step 3: Cross multiply
    9,387.18x = 12,885.29 × 8,301.15
  4. Step 4: Simplify right side
    9,387.18x = 106,962,745.84
  5. Step 5: Solve for x
    x = 106,962,745.84/9,387.18
  6. Step 6: Final answer
    x = 11,394.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.