Home / 15,219.09-21,001.94-8,504.76

Finding the Fourth Proportional to 15,219.09, 21,001.94 and 8,504.76

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Solution

The fourth proportional to 15,219.09, 21,001.94 and 8,504.76 is: 11,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.09 : 21,001.94 = 8,504.76 : x
  2. Step 2: Convert to fraction form
    15,219.09/21,001.94 = 8,504.76/x
  3. Step 3: Cross multiply
    15,219.09x = 21,001.94 × 8,504.76
  4. Step 4: Simplify right side
    15,219.09x = 178,616,459.23
  5. Step 5: Solve for x
    x = 178,616,459.23/15,219.09
  6. Step 6: Final answer
    x = 11,736.34

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Half scale
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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.