Home / 18,828.92-25,983.76-10,445.40

Finding the Fourth Proportional to 18,828.92, 25,983.76 and 10,445.40

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Solution

The fourth proportional to 18,828.92, 25,983.76 and 10,445.40 is: 14,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.92 : 25,983.76 = 10,445.40 : x
  2. Step 2: Convert to fraction form
    18,828.92/25,983.76 = 10,445.40/x
  3. Step 3: Cross multiply
    18,828.92x = 25,983.76 × 10,445.40
  4. Step 4: Simplify right side
    18,828.92x = 271,410,766.70
  5. Step 5: Solve for x
    x = 271,410,766.70/18,828.92
  6. Step 6: Final answer
    x = 14,414.57

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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.