Home / 8,328.20-12,492.30-4,440.20

Finding the Fourth Proportional to 8,328.20, 12,492.30 and 4,440.20

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Solution

The fourth proportional to 8,328.20, 12,492.30 and 4,440.20 is: 6,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.20 : 12,492.30 = 4,440.20 : x
  2. Step 2: Convert to fraction form
    8,328.20/12,492.30 = 4,440.20/x
  3. Step 3: Cross multiply
    8,328.20x = 12,492.30 × 4,440.20
  4. Step 4: Simplify right side
    8,328.20x = 55,468,310.46
  5. Step 5: Solve for x
    x = 55,468,310.46/8,328.20
  6. Step 6: Final answer
    x = 6,660.30

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Double scale
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Similar ratio
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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.