Home / 18,748.36-28,122.69-5,600.85

Finding the Fourth Proportional to 18,748.36, 28,122.69 and 5,600.85

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Solution

The fourth proportional to 18,748.36, 28,122.69 and 5,600.85 is: 8,401.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.36 : 28,122.69 = 5,600.85 : x
  2. Step 2: Convert to fraction form
    18,748.36/28,122.69 = 5,600.85/x
  3. Step 3: Cross multiply
    18,748.36x = 28,122.69 × 5,600.85
  4. Step 4: Simplify right side
    18,748.36x = 157,510,883.83
  5. Step 5: Solve for x
    x = 157,510,883.83/18,748.36
  6. Step 6: Final answer
    x = 8,401.31

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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.