Home / 12,077.10-18,115.65-4,284.09

Finding the Fourth Proportional to 12,077.10, 18,115.65 and 4,284.09

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Solution

The fourth proportional to 12,077.10, 18,115.65 and 4,284.09 is: 6,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.10 : 18,115.65 = 4,284.09 : x
  2. Step 2: Convert to fraction form
    12,077.10/18,115.65 = 4,284.09/x
  3. Step 3: Cross multiply
    12,077.10x = 18,115.65 × 4,284.09
  4. Step 4: Simplify right side
    12,077.10x = 77,609,075.01
  5. Step 5: Solve for x
    x = 77,609,075.01/12,077.10
  6. Step 6: Final answer
    x = 6,426.14

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Similar ratio
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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.