Home / 15,578.26-21,497.39-8,504.74

Finding the Fourth Proportional to 15,578.26, 21,497.39 and 8,504.74

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Solution

The fourth proportional to 15,578.26, 21,497.39 and 8,504.74 is: 11,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.26 : 21,497.39 = 8,504.74 : x
  2. Step 2: Convert to fraction form
    15,578.26/21,497.39 = 8,504.74/x
  3. Step 3: Cross multiply
    15,578.26x = 21,497.39 × 8,504.74
  4. Step 4: Simplify right side
    15,578.26x = 182,829,562.62
  5. Step 5: Solve for x
    x = 182,829,562.62/15,578.26
  6. Step 6: Final answer
    x = 11,736.20

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Half scale
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Double scale
Find fourth proportional to 15,579.26, 21,498.76 and 8,505.74
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.