Home / 15,284.28-21,091.55-8,996.25

Finding the Fourth Proportional to 15,284.28, 21,091.55 and 8,996.25

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Solution

The fourth proportional to 15,284.28, 21,091.55 and 8,996.25 is: 12,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.28 : 21,091.55 = 8,996.25 : x
  2. Step 2: Convert to fraction form
    15,284.28/21,091.55 = 8,996.25/x
  3. Step 3: Cross multiply
    15,284.28x = 21,091.55 × 8,996.25
  4. Step 4: Simplify right side
    15,284.28x = 189,744,811.71
  5. Step 5: Solve for x
    x = 189,744,811.71/15,284.28
  6. Step 6: Final answer
    x = 12,414.38

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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.