Home / 8,075.12-12,113.32-2,231.68

Finding the Fourth Proportional to 8,075.12, 12,113.32 and 2,231.68

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Solution

The fourth proportional to 8,075.12, 12,113.32 and 2,231.68 is: 3,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.12 : 12,113.32 = 2,231.68 : x
  2. Step 2: Convert to fraction form
    8,075.12/12,113.32 = 2,231.68/x
  3. Step 3: Cross multiply
    8,075.12x = 12,113.32 × 2,231.68
  4. Step 4: Simplify right side
    8,075.12x = 27,033,053.98
  5. Step 5: Solve for x
    x = 27,033,053.98/8,075.12
  6. Step 6: Final answer
    x = 3,347.70

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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.