Home / 10,923.84-15,118.22-10,661.78

Finding the Fourth Proportional to 10,923.84, 15,118.22 and 10,661.78

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Solution

The fourth proportional to 10,923.84, 15,118.22 and 10,661.78 is: 14,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,923.84 : 15,118.22 = 10,661.78 : x
  2. Step 2: Convert to fraction form
    10,923.84/15,118.22 = 10,661.78/x
  3. Step 3: Cross multiply
    10,923.84x = 15,118.22 × 10,661.78
  4. Step 4: Simplify right side
    10,923.84x = 161,187,135.63
  5. Step 5: Solve for x
    x = 161,187,135.63/10,923.84
  6. Step 6: Final answer
    x = 14,755.54

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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.