Home / 18,666.92-25,754.86-11,109.45

Finding the Fourth Proportional to 18,666.92, 25,754.86 and 11,109.45

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Solution

The fourth proportional to 18,666.92, 25,754.86 and 11,109.45 is: 15,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.92 : 25,754.86 = 11,109.45 : x
  2. Step 2: Convert to fraction form
    18,666.92/25,754.86 = 11,109.45/x
  3. Step 3: Cross multiply
    18,666.92x = 25,754.86 × 11,109.45
  4. Step 4: Simplify right side
    18,666.92x = 286,122,439.89
  5. Step 5: Solve for x
    x = 286,122,439.89/18,666.92
  6. Step 6: Final answer
    x = 15,327.78

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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.