Home / 11,116.38-15,340.38-6,641.14

Finding the Fourth Proportional to 11,116.38, 15,340.38 and 6,641.14

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Solution

The fourth proportional to 11,116.38, 15,340.38 and 6,641.14 is: 9,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.38 : 15,340.38 = 6,641.14 : x
  2. Step 2: Convert to fraction form
    11,116.38/15,340.38 = 6,641.14/x
  3. Step 3: Cross multiply
    11,116.38x = 15,340.38 × 6,641.14
  4. Step 4: Simplify right side
    11,116.38x = 101,877,611.23
  5. Step 5: Solve for x
    x = 101,877,611.23/11,116.38
  6. Step 6: Final answer
    x = 9,164.64

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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.