Home / 8,075.99-12,109.03-2,808.74

Finding the Fourth Proportional to 8,075.99, 12,109.03 and 2,808.74

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Solution

The fourth proportional to 8,075.99, 12,109.03 and 2,808.74 is: 4,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.99 : 12,109.03 = 2,808.74 : x
  2. Step 2: Convert to fraction form
    8,075.99/12,109.03 = 2,808.74/x
  3. Step 3: Cross multiply
    8,075.99x = 12,109.03 × 2,808.74
  4. Step 4: Simplify right side
    8,075.99x = 34,011,140.17
  5. Step 5: Solve for x
    x = 34,011,140.17/8,075.99
  6. Step 6: Final answer
    x = 4,211.39

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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.