Home / 11,888.10-17,832.28-3,123.90

Finding the Fourth Proportional to 11,888.10, 17,832.28 and 3,123.90

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Solution

The fourth proportional to 11,888.10, 17,832.28 and 3,123.90 is: 4,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.10 : 17,832.28 = 3,123.90 : x
  2. Step 2: Convert to fraction form
    11,888.10/17,832.28 = 3,123.90/x
  3. Step 3: Cross multiply
    11,888.10x = 17,832.28 × 3,123.90
  4. Step 4: Simplify right side
    11,888.10x = 55,706,259.49
  5. Step 5: Solve for x
    x = 55,706,259.49/11,888.10
  6. Step 6: Final answer
    x = 4,685.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.