Home / 9,179.20-12,665.73-5,401.63

Finding the Fourth Proportional to 9,179.20, 12,665.73 and 5,401.63

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Solution

The fourth proportional to 9,179.20, 12,665.73 and 5,401.63 is: 7,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.20 : 12,665.73 = 5,401.63 : x
  2. Step 2: Convert to fraction form
    9,179.20/12,665.73 = 5,401.63/x
  3. Step 3: Cross multiply
    9,179.20x = 12,665.73 × 5,401.63
  4. Step 4: Simplify right side
    9,179.20x = 68,415,587.14
  5. Step 5: Solve for x
    x = 68,415,587.14/9,179.20
  6. Step 6: Final answer
    x = 7,453.33

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Half scale
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Double scale
Find fourth proportional to 9,180.20, 12,667.11 and 5,402.63
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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.