Home / 12,146.09-18,219.14-6,948.32

Finding the Fourth Proportional to 12,146.09, 18,219.14 and 6,948.32

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Solution

The fourth proportional to 12,146.09, 18,219.14 and 6,948.32 is: 10,422.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.09 : 18,219.14 = 6,948.32 : x
  2. Step 2: Convert to fraction form
    12,146.09/18,219.14 = 6,948.32/x
  3. Step 3: Cross multiply
    12,146.09x = 18,219.14 × 6,948.32
  4. Step 4: Simplify right side
    12,146.09x = 126,592,380.10
  5. Step 5: Solve for x
    x = 126,592,380.10/12,146.09
  6. Step 6: Final answer
    x = 10,422.48

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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.