Home / 8,075.62-12,114.22-3,145.66

Finding the Fourth Proportional to 8,075.62, 12,114.22 and 3,145.66

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Solution

The fourth proportional to 8,075.62, 12,114.22 and 3,145.66 is: 4,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.62 : 12,114.22 = 3,145.66 : x
  2. Step 2: Convert to fraction form
    8,075.62/12,114.22 = 3,145.66/x
  3. Step 3: Cross multiply
    8,075.62x = 12,114.22 × 3,145.66
  4. Step 4: Simplify right side
    8,075.62x = 38,107,217.29
  5. Step 5: Solve for x
    x = 38,107,217.29/8,075.62
  6. Step 6: Final answer
    x = 4,718.80

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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.