Home / 18,005.42-27,037.29-11,123.66

Finding the Fourth Proportional to 18,005.42, 27,037.29 and 11,123.66

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Solution

The fourth proportional to 18,005.42, 27,037.29 and 11,123.66 is: 16,703.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.42 : 27,037.29 = 11,123.66 : x
  2. Step 2: Convert to fraction form
    18,005.42/27,037.29 = 11,123.66/x
  3. Step 3: Cross multiply
    18,005.42x = 27,037.29 × 11,123.66
  4. Step 4: Simplify right side
    18,005.42x = 300,753,621.28
  5. Step 5: Solve for x
    x = 300,753,621.28/18,005.42
  6. Step 6: Final answer
    x = 16,703.50

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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.