Home / 8,287.11-12,427.29-4,125.60

Finding the Fourth Proportional to 8,287.11, 12,427.29 and 4,125.60

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Solution

The fourth proportional to 8,287.11, 12,427.29 and 4,125.60 is: 6,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.11 : 12,427.29 = 4,125.60 : x
  2. Step 2: Convert to fraction form
    8,287.11/12,427.29 = 4,125.60/x
  3. Step 3: Cross multiply
    8,287.11x = 12,427.29 × 4,125.60
  4. Step 4: Simplify right side
    8,287.11x = 51,270,027.62
  5. Step 5: Solve for x
    x = 51,270,027.62/8,287.11
  6. Step 6: Final answer
    x = 6,186.72

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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.