Home / 11,175.36-15,422.46-6,396.76

Finding the Fourth Proportional to 11,175.36, 15,422.46 and 6,396.76

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Solution

The fourth proportional to 11,175.36, 15,422.46 and 6,396.76 is: 8,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.36 : 15,422.46 = 6,396.76 : x
  2. Step 2: Convert to fraction form
    11,175.36/15,422.46 = 6,396.76/x
  3. Step 3: Cross multiply
    11,175.36x = 15,422.46 × 6,396.76
  4. Step 4: Simplify right side
    11,175.36x = 98,653,775.23
  5. Step 5: Solve for x
    x = 98,653,775.23/11,175.36
  6. Step 6: Final answer
    x = 8,827.79

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Half scale
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Double scale
Find fourth proportional to 11,176.36, 15,423.84 and 6,397.76
Similar ratio
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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.