Home / 8,329.20-12,492.36-3,135.12

Finding the Fourth Proportional to 8,329.20, 12,492.36 and 3,135.12

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Solution

The fourth proportional to 8,329.20, 12,492.36 and 3,135.12 is: 4,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.20 : 12,492.36 = 3,135.12 : x
  2. Step 2: Convert to fraction form
    8,329.20/12,492.36 = 3,135.12/x
  3. Step 3: Cross multiply
    8,329.20x = 12,492.36 × 3,135.12
  4. Step 4: Simplify right side
    8,329.20x = 39,165,047.68
  5. Step 5: Solve for x
    x = 39,165,047.68/8,329.20
  6. Step 6: Final answer
    x = 4,702.14

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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.