Home / 8,494.32-12,729.84-6,412.56

Finding the Fourth Proportional to 8,494.32, 12,729.84 and 6,412.56

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Solution

The fourth proportional to 8,494.32, 12,729.84 and 6,412.56 is: 9,610.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,494.32 : 12,729.84 = 6,412.56 : x
  2. Step 2: Convert to fraction form
    8,494.32/12,729.84 = 6,412.56/x
  3. Step 3: Cross multiply
    8,494.32x = 12,729.84 × 6,412.56
  4. Step 4: Simplify right side
    8,494.32x = 81,630,862.79
  5. Step 5: Solve for x
    x = 81,630,862.79/8,494.32
  6. Step 6: Final answer
    x = 9,610.05

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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.