Home / 18,768.29-25,896.13-11,213.49

Finding the Fourth Proportional to 18,768.29, 25,896.13 and 11,213.49

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Solution

The fourth proportional to 18,768.29, 25,896.13 and 11,213.49 is: 15,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.29 : 25,896.13 = 11,213.49 : x
  2. Step 2: Convert to fraction form
    18,768.29/25,896.13 = 11,213.49/x
  3. Step 3: Cross multiply
    18,768.29x = 25,896.13 × 11,213.49
  4. Step 4: Simplify right side
    18,768.29x = 290,385,994.79
  5. Step 5: Solve for x
    x = 290,385,994.79/18,768.29
  6. Step 6: Final answer
    x = 15,472.16

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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.