Home / 13,382.08-18,464.16-8,077.12

Finding the Fourth Proportional to 13,382.08, 18,464.16 and 8,077.12

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Solution

The fourth proportional to 13,382.08, 18,464.16 and 8,077.12 is: 11,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.08 : 18,464.16 = 8,077.12 : x
  2. Step 2: Convert to fraction form
    13,382.08/18,464.16 = 8,077.12/x
  3. Step 3: Cross multiply
    13,382.08x = 18,464.16 × 8,077.12
  4. Step 4: Simplify right side
    13,382.08x = 149,137,236.02
  5. Step 5: Solve for x
    x = 149,137,236.02/13,382.08
  6. Step 6: Final answer
    x = 11,144.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.