Home / 8,327.28-12,492.20-4,857.20

Finding the Fourth Proportional to 8,327.28, 12,492.20 and 4,857.20

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Solution

The fourth proportional to 8,327.28, 12,492.20 and 4,857.20 is: 7,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.28 : 12,492.20 = 4,857.20 : x
  2. Step 2: Convert to fraction form
    8,327.28/12,492.20 = 4,857.20/x
  3. Step 3: Cross multiply
    8,327.28x = 12,492.20 × 4,857.20
  4. Step 4: Simplify right side
    8,327.28x = 60,677,113.84
  5. Step 5: Solve for x
    x = 60,677,113.84/8,327.28
  6. Step 6: Final answer
    x = 7,286.55

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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.