Home / 13,514.92-18,685.38-10,381.48

Finding the Fourth Proportional to 13,514.92, 18,685.38 and 10,381.48

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Solution

The fourth proportional to 13,514.92, 18,685.38 and 10,381.48 is: 14,353.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.92 : 18,685.38 = 10,381.48 : x
  2. Step 2: Convert to fraction form
    13,514.92/18,685.38 = 10,381.48/x
  3. Step 3: Cross multiply
    13,514.92x = 18,685.38 × 10,381.48
  4. Step 4: Simplify right side
    13,514.92x = 193,981,898.76
  5. Step 5: Solve for x
    x = 193,981,898.76/13,514.92
  6. Step 6: Final answer
    x = 14,353.17

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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.