Home / 8,220.10-12,330.15-3,025.30

Finding the Fourth Proportional to 8,220.10, 12,330.15 and 3,025.30

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Solution

The fourth proportional to 8,220.10, 12,330.15 and 3,025.30 is: 4,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.10 : 12,330.15 = 3,025.30 : x
  2. Step 2: Convert to fraction form
    8,220.10/12,330.15 = 3,025.30/x
  3. Step 3: Cross multiply
    8,220.10x = 12,330.15 × 3,025.30
  4. Step 4: Simplify right side
    8,220.10x = 37,302,402.80
  5. Step 5: Solve for x
    x = 37,302,402.80/8,220.10
  6. Step 6: Final answer
    x = 4,537.95

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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.