Home / 10,118.40-15,177.90-2,722.86

Finding the Fourth Proportional to 10,118.40, 15,177.90 and 2,722.86

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Solution

The fourth proportional to 10,118.40, 15,177.90 and 2,722.86 is: 4,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.40 : 15,177.90 = 2,722.86 : x
  2. Step 2: Convert to fraction form
    10,118.40/15,177.90 = 2,722.86/x
  3. Step 3: Cross multiply
    10,118.40x = 15,177.90 × 2,722.86
  4. Step 4: Simplify right side
    10,118.40x = 41,327,296.79
  5. Step 5: Solve for x
    x = 41,327,296.79/10,118.40
  6. Step 6: Final answer
    x = 4,084.37

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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.