Home / 9,665.62-13,335.36-6,680.38

Finding the Fourth Proportional to 9,665.62, 13,335.36 and 6,680.38

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Solution

The fourth proportional to 9,665.62, 13,335.36 and 6,680.38 is: 9,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.62 : 13,335.36 = 6,680.38 : x
  2. Step 2: Convert to fraction form
    9,665.62/13,335.36 = 6,680.38/x
  3. Step 3: Cross multiply
    9,665.62x = 13,335.36 × 6,680.38
  4. Step 4: Simplify right side
    9,665.62x = 89,085,272.24
  5. Step 5: Solve for x
    x = 89,085,272.24/9,665.62
  6. Step 6: Final answer
    x = 9,216.72

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Half scale
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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.