Home / 18,220.50-25,139.97-10,261.14

Finding the Fourth Proportional to 18,220.50, 25,139.97 and 10,261.14

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Solution

The fourth proportional to 18,220.50, 25,139.97 and 10,261.14 is: 14,157.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.50 : 25,139.97 = 10,261.14 : x
  2. Step 2: Convert to fraction form
    18,220.50/25,139.97 = 10,261.14/x
  3. Step 3: Cross multiply
    18,220.50x = 25,139.97 × 10,261.14
  4. Step 4: Simplify right side
    18,220.50x = 257,964,751.77
  5. Step 5: Solve for x
    x = 257,964,751.77/18,220.50
  6. Step 6: Final answer
    x = 14,157.94

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.