Home / 10,118.45-15,178.57-2,722.75

Finding the Fourth Proportional to 10,118.45, 15,178.57 and 2,722.75

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Solution

The fourth proportional to 10,118.45, 15,178.57 and 2,722.75 is: 4,084.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.45 : 15,178.57 = 2,722.75 : x
  2. Step 2: Convert to fraction form
    10,118.45/15,178.57 = 2,722.75/x
  3. Step 3: Cross multiply
    10,118.45x = 15,178.57 × 2,722.75
  4. Step 4: Simplify right side
    10,118.45x = 41,327,406.71
  5. Step 5: Solve for x
    x = 41,327,406.71/10,118.45
  6. Step 6: Final answer
    x = 4,084.36

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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.