Home / 12,387.12-18,580.92-3,027.16

Finding the Fourth Proportional to 12,387.12, 18,580.92 and 3,027.16

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Solution

The fourth proportional to 12,387.12, 18,580.92 and 3,027.16 is: 4,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.12 : 18,580.92 = 3,027.16 : x
  2. Step 2: Convert to fraction form
    12,387.12/18,580.92 = 3,027.16/x
  3. Step 3: Cross multiply
    12,387.12x = 18,580.92 × 3,027.16
  4. Step 4: Simplify right side
    12,387.12x = 56,247,417.79
  5. Step 5: Solve for x
    x = 56,247,417.79/12,387.12
  6. Step 6: Final answer
    x = 4,540.80

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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.