Home / 8,247.42-12,374.91-3,867.75

Finding the Fourth Proportional to 8,247.42, 12,374.91 and 3,867.75

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Solution

The fourth proportional to 8,247.42, 12,374.91 and 3,867.75 is: 5,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.42 : 12,374.91 = 3,867.75 : x
  2. Step 2: Convert to fraction form
    8,247.42/12,374.91 = 3,867.75/x
  3. Step 3: Cross multiply
    8,247.42x = 12,374.91 × 3,867.75
  4. Step 4: Simplify right side
    8,247.42x = 47,863,058.15
  5. Step 5: Solve for x
    x = 47,863,058.15/8,247.42
  6. Step 6: Final answer
    x = 5,803.40

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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.