Home / 13,179.43-18,177.35-8,464.15

Finding the Fourth Proportional to 13,179.43, 18,177.35 and 8,464.15

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Solution

The fourth proportional to 13,179.43, 18,177.35 and 8,464.15 is: 11,673.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.43 : 18,177.35 = 8,464.15 : x
  2. Step 2: Convert to fraction form
    13,179.43/18,177.35 = 8,464.15/x
  3. Step 3: Cross multiply
    13,179.43x = 18,177.35 × 8,464.15
  4. Step 4: Simplify right side
    13,179.43x = 153,855,774.68
  5. Step 5: Solve for x
    x = 153,855,774.68/13,179.43
  6. Step 6: Final answer
    x = 11,673.93

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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.