Home / 15,578.27-21,497.90-8,504.69

Finding the Fourth Proportional to 15,578.27, 21,497.90 and 8,504.69

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Solution

The fourth proportional to 15,578.27, 21,497.90 and 8,504.69 is: 11,736.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.27 : 21,497.90 = 8,504.69 : x
  2. Step 2: Convert to fraction form
    15,578.27/21,497.90 = 8,504.69/x
  3. Step 3: Cross multiply
    15,578.27x = 21,497.90 × 8,504.69
  4. Step 4: Simplify right side
    15,578.27x = 182,832,975.15
  5. Step 5: Solve for x
    x = 182,832,975.15/15,578.27
  6. Step 6: Final answer
    x = 11,736.41

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Double scale
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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.