Home / 12,077.16-18,115.28-3,757.88

Finding the Fourth Proportional to 12,077.16, 18,115.28 and 3,757.88

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Solution

The fourth proportional to 12,077.16, 18,115.28 and 3,757.88 is: 5,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.16 : 18,115.28 = 3,757.88 : x
  2. Step 2: Convert to fraction form
    12,077.16/18,115.28 = 3,757.88/x
  3. Step 3: Cross multiply
    12,077.16x = 18,115.28 × 3,757.88
  4. Step 4: Simplify right side
    12,077.16x = 68,075,048.41
  5. Step 5: Solve for x
    x = 68,075,048.41/12,077.16
  6. Step 6: Final answer
    x = 5,636.68

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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.