Home / 12,042.10-18,063.15-9,126.10

Finding the Fourth Proportional to 12,042.10, 18,063.15 and 9,126.10

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Solution

The fourth proportional to 12,042.10, 18,063.15 and 9,126.10 is: 13,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.10 : 18,063.15 = 9,126.10 : x
  2. Step 2: Convert to fraction form
    12,042.10/18,063.15 = 9,126.10/x
  3. Step 3: Cross multiply
    12,042.10x = 18,063.15 × 9,126.10
  4. Step 4: Simplify right side
    12,042.10x = 164,846,113.22
  5. Step 5: Solve for x
    x = 164,846,113.22/12,042.10
  6. Step 6: Final answer
    x = 13,689.15

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Half scale
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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.