Home / 12,427.45-18,641.17-10,231.56

Finding the Fourth Proportional to 12,427.45, 18,641.17 and 10,231.56

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Solution

The fourth proportional to 12,427.45, 18,641.17 and 10,231.56 is: 15,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.45 : 18,641.17 = 10,231.56 : x
  2. Step 2: Convert to fraction form
    12,427.45/18,641.17 = 10,231.56/x
  3. Step 3: Cross multiply
    12,427.45x = 18,641.17 × 10,231.56
  4. Step 4: Simplify right side
    12,427.45x = 190,728,302.59
  5. Step 5: Solve for x
    x = 190,728,302.59/12,427.45
  6. Step 6: Final answer
    x = 15,347.34

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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.