Home / 12,126.46-18,194.13-5,108.23

Finding the Fourth Proportional to 12,126.46, 18,194.13 and 5,108.23

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Solution

The fourth proportional to 12,126.46, 18,194.13 and 5,108.23 is: 7,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.46 : 18,194.13 = 5,108.23 : x
  2. Step 2: Convert to fraction form
    12,126.46/18,194.13 = 5,108.23/x
  3. Step 3: Cross multiply
    12,126.46x = 18,194.13 × 5,108.23
  4. Step 4: Simplify right side
    12,126.46x = 92,939,800.69
  5. Step 5: Solve for x
    x = 92,939,800.69/12,126.46
  6. Step 6: Final answer
    x = 7,664.22

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Half scale
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Double scale
Find fourth proportional to 12,127.46, 18,195.63 and 5,109.23
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.