Home / 9,179.38-12,667.48-4,987.63

Finding the Fourth Proportional to 9,179.38, 12,667.48 and 4,987.63

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Solution

The fourth proportional to 9,179.38, 12,667.48 and 4,987.63 is: 6,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.38 : 12,667.48 = 4,987.63 : x
  2. Step 2: Convert to fraction form
    9,179.38/12,667.48 = 4,987.63/x
  3. Step 3: Cross multiply
    9,179.38x = 12,667.48 × 4,987.63
  4. Step 4: Simplify right side
    9,179.38x = 63,180,703.27
  5. Step 5: Solve for x
    x = 63,180,703.27/9,179.38
  6. Step 6: Final answer
    x = 6,882.89

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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.