Home / 18,769.92-25,902.72-10,387.20

Finding the Fourth Proportional to 18,769.92, 25,902.72 and 10,387.20

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Solution

The fourth proportional to 18,769.92, 25,902.72 and 10,387.20 is: 14,334.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.92 : 25,902.72 = 10,387.20 : x
  2. Step 2: Convert to fraction form
    18,769.92/25,902.72 = 10,387.20/x
  3. Step 3: Cross multiply
    18,769.92x = 25,902.72 × 10,387.20
  4. Step 4: Simplify right side
    18,769.92x = 269,056,733.18
  5. Step 5: Solve for x
    x = 269,056,733.18/18,769.92
  6. Step 6: Final answer
    x = 14,334.46

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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.