Home / 18,123.12-27,179.46-4,975.92

Finding the Fourth Proportional to 18,123.12, 27,179.46 and 4,975.92

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Solution

The fourth proportional to 18,123.12, 27,179.46 and 4,975.92 is: 7,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.12 : 27,179.46 = 4,975.92 : x
  2. Step 2: Convert to fraction form
    18,123.12/27,179.46 = 4,975.92/x
  3. Step 3: Cross multiply
    18,123.12x = 27,179.46 × 4,975.92
  4. Step 4: Simplify right side
    18,123.12x = 135,242,818.60
  5. Step 5: Solve for x
    x = 135,242,818.60/18,123.12
  6. Step 6: Final answer
    x = 7,462.45

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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.