Home / 11,180.25-15,428.75-6,464.84

Finding the Fourth Proportional to 11,180.25, 15,428.75 and 6,464.84

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Solution

The fourth proportional to 11,180.25, 15,428.75 and 6,464.84 is: 8,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.25 : 15,428.75 = 6,464.84 : x
  2. Step 2: Convert to fraction form
    11,180.25/15,428.75 = 6,464.84/x
  3. Step 3: Cross multiply
    11,180.25x = 15,428.75 × 6,464.84
  4. Step 4: Simplify right side
    11,180.25x = 99,744,290.68
  5. Step 5: Solve for x
    x = 99,744,290.68/11,180.25
  6. Step 6: Final answer
    x = 8,921.47

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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.