Home / 18,522.12-25,560.54-10,138.62

Finding the Fourth Proportional to 18,522.12, 25,560.54 and 10,138.62

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Solution

The fourth proportional to 18,522.12, 25,560.54 and 10,138.62 is: 13,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.12 : 25,560.54 = 10,138.62 : x
  2. Step 2: Convert to fraction form
    18,522.12/25,560.54 = 10,138.62/x
  3. Step 3: Cross multiply
    18,522.12x = 25,560.54 × 10,138.62
  4. Step 4: Simplify right side
    18,522.12x = 259,148,602.05
  5. Step 5: Solve for x
    x = 259,148,602.05/18,522.12
  6. Step 6: Final answer
    x = 13,991.30

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Half scale
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Double scale
Find fourth proportional to 18,523.12, 25,561.92 and 10,139.62
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.