Home / 9,679.50-13,351.77-5,900.85

Finding the Fourth Proportional to 9,679.50, 13,351.77 and 5,900.85

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Solution

The fourth proportional to 9,679.50, 13,351.77 and 5,900.85 is: 8,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.50 : 13,351.77 = 5,900.85 : x
  2. Step 2: Convert to fraction form
    9,679.50/13,351.77 = 5,900.85/x
  3. Step 3: Cross multiply
    9,679.50x = 13,351.77 × 5,900.85
  4. Step 4: Simplify right side
    9,679.50x = 78,786,792.00
  5. Step 5: Solve for x
    x = 78,786,792.00/9,679.50
  6. Step 6: Final answer
    x = 8,139.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.