Home / 12,177.91-18,259.87-4,773.70

Finding the Fourth Proportional to 12,177.91, 18,259.87 and 4,773.70

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Solution

The fourth proportional to 12,177.91, 18,259.87 and 4,773.70 is: 7,157.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.91 : 18,259.87 = 4,773.70 : x
  2. Step 2: Convert to fraction form
    12,177.91/18,259.87 = 4,773.70/x
  3. Step 3: Cross multiply
    12,177.91x = 18,259.87 × 4,773.70
  4. Step 4: Simplify right side
    12,177.91x = 87,167,141.42
  5. Step 5: Solve for x
    x = 87,167,141.42/12,177.91
  6. Step 6: Final answer
    x = 7,157.81

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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.