Home / 8,075.56-12,104.97-3,143.20

Finding the Fourth Proportional to 8,075.56, 12,104.97 and 3,143.20

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Solution

The fourth proportional to 8,075.56, 12,104.97 and 3,143.20 is: 4,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.56 : 12,104.97 = 3,143.20 : x
  2. Step 2: Convert to fraction form
    8,075.56/12,104.97 = 3,143.20/x
  3. Step 3: Cross multiply
    8,075.56x = 12,104.97 × 3,143.20
  4. Step 4: Simplify right side
    8,075.56x = 38,048,341.70
  5. Step 5: Solve for x
    x = 38,048,341.70/8,075.56
  6. Step 6: Final answer
    x = 4,711.54

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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.