Home / 8,078.10-12,117.76-2,235.18

Finding the Fourth Proportional to 8,078.10, 12,117.76 and 2,235.18

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Solution

The fourth proportional to 8,078.10, 12,117.76 and 2,235.18 is: 3,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.10 : 12,117.76 = 2,235.18 : x
  2. Step 2: Convert to fraction form
    8,078.10/12,117.76 = 2,235.18/x
  3. Step 3: Cross multiply
    8,078.10x = 12,117.76 × 2,235.18
  4. Step 4: Simplify right side
    8,078.10x = 27,085,374.80
  5. Step 5: Solve for x
    x = 27,085,374.80/8,078.10
  6. Step 6: Final answer
    x = 3,352.94

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Double scale
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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.