Home / 10,885.11-15,022.71-6,170.25

Finding the Fourth Proportional to 10,885.11, 15,022.71 and 6,170.25

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Solution

The fourth proportional to 10,885.11, 15,022.71 and 6,170.25 is: 8,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.11 : 15,022.71 = 6,170.25 : x
  2. Step 2: Convert to fraction form
    10,885.11/15,022.71 = 6,170.25/x
  3. Step 3: Cross multiply
    10,885.11x = 15,022.71 × 6,170.25
  4. Step 4: Simplify right side
    10,885.11x = 92,693,876.38
  5. Step 5: Solve for x
    x = 92,693,876.38/10,885.11
  6. Step 6: Final answer
    x = 8,515.66

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Half scale
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Double scale
Find fourth proportional to 10,886.11, 15,024.09 and 6,171.25
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.