Home / 18,433.96-25,440.69-10,882.78

Finding the Fourth Proportional to 18,433.96, 25,440.69 and 10,882.78

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Solution

The fourth proportional to 18,433.96, 25,440.69 and 10,882.78 is: 15,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433.96 : 25,440.69 = 10,882.78 : x
  2. Step 2: Convert to fraction form
    18,433.96/25,440.69 = 10,882.78/x
  3. Step 3: Cross multiply
    18,433.96x = 25,440.69 × 10,882.78
  4. Step 4: Simplify right side
    18,433.96x = 276,865,432.32
  5. Step 5: Solve for x
    x = 276,865,432.32/18,433.96
  6. Step 6: Final answer
    x = 15,019.31

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Half scale
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Double scale
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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.