Home / 8,074.15-11,146.11-5,389.85

Finding the Fourth Proportional to 8,074.15, 11,146.11 and 5,389.85

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Solution

The fourth proportional to 8,074.15, 11,146.11 and 5,389.85 is: 7,440.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.15 : 11,146.11 = 5,389.85 : x
  2. Step 2: Convert to fraction form
    8,074.15/11,146.11 = 5,389.85/x
  3. Step 3: Cross multiply
    8,074.15x = 11,146.11 × 5,389.85
  4. Step 4: Simplify right side
    8,074.15x = 60,075,860.98
  5. Step 5: Solve for x
    x = 60,075,860.98/8,074.15
  6. Step 6: Final answer
    x = 7,440.52

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Half scale
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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.