Home / 18,748.42-28,122.66-5,599.76

Finding the Fourth Proportional to 18,748.42, 28,122.66 and 5,599.76

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Solution

The fourth proportional to 18,748.42, 28,122.66 and 5,599.76 is: 8,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.42 : 28,122.66 = 5,599.76 : x
  2. Step 2: Convert to fraction form
    18,748.42/28,122.66 = 5,599.76/x
  3. Step 3: Cross multiply
    18,748.42x = 28,122.66 × 5,599.76
  4. Step 4: Simplify right side
    18,748.42x = 157,480,146.56
  5. Step 5: Solve for x
    x = 157,480,146.56/18,748.42
  6. Step 6: Final answer
    x = 8,399.65

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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.