Home / 8,126.10-12,189.60-2,282.25

Finding the Fourth Proportional to 8,126.10, 12,189.60 and 2,282.25

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Solution

The fourth proportional to 8,126.10, 12,189.60 and 2,282.25 is: 3,423.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.10 : 12,189.60 = 2,282.25 : x
  2. Step 2: Convert to fraction form
    8,126.10/12,189.60 = 2,282.25/x
  3. Step 3: Cross multiply
    8,126.10x = 12,189.60 × 2,282.25
  4. Step 4: Simplify right side
    8,126.10x = 27,819,714.60
  5. Step 5: Solve for x
    x = 27,819,714.60/8,126.10
  6. Step 6: Final answer
    x = 3,423.50

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Half scale
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Double scale
Find fourth proportional to 8,127.10, 12,191.10 and 2,283.25
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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.