Home / 18,769.50-25,902.72-10,386

Finding the Fourth Proportional to 18,769.50, 25,902.72 and 10,386

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Solution

The fourth proportional to 18,769.50, 25,902.72 and 10,386 is: 14,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.50 : 25,902.72 = 10,386 : x
  2. Step 2: Convert to fraction form
    18,769.50/25,902.72 = 10,386/x
  3. Step 3: Cross multiply
    18,769.50x = 25,902.72 × 10,386
  4. Step 4: Simplify right side
    18,769.50x = 269,025,649.92
  5. Step 5: Solve for x
    x = 269,025,649.92/18,769.50
  6. Step 6: Final answer
    x = 14,333.13

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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.