Home / 15,218.28-21,002-8,504.04

Finding the Fourth Proportional to 15,218.28, 21,002 and 8,504.04

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Solution

The fourth proportional to 15,218.28, 21,002 and 8,504.04 is: 11,736.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.28 : 21,002 = 8,504.04 : x
  2. Step 2: Convert to fraction form
    15,218.28/21,002 = 8,504.04/x
  3. Step 3: Cross multiply
    15,218.28x = 21,002 × 8,504.04
  4. Step 4: Simplify right side
    15,218.28x = 178,601,848.08
  5. Step 5: Solve for x
    x = 178,601,848.08/15,218.28
  6. Step 6: Final answer
    x = 11,736.01

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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.