Home / 11,171.36-15,414.63-6,456.08

Finding the Fourth Proportional to 11,171.36, 15,414.63 and 6,456.08

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Solution

The fourth proportional to 11,171.36, 15,414.63 and 6,456.08 is: 8,908.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.36 : 15,414.63 = 6,456.08 : x
  2. Step 2: Convert to fraction form
    11,171.36/15,414.63 = 6,456.08/x
  3. Step 3: Cross multiply
    11,171.36x = 15,414.63 × 6,456.08
  4. Step 4: Simplify right side
    11,171.36x = 99,518,084.45
  5. Step 5: Solve for x
    x = 99,518,084.45/11,171.36
  6. Step 6: Final answer
    x = 8,908.32

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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.