Home / 15,218.64-21,002.53-8,504.43

Finding the Fourth Proportional to 15,218.64, 21,002.53 and 8,504.43

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Solution

The fourth proportional to 15,218.64, 21,002.53 and 8,504.43 is: 11,736.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.64 : 21,002.53 = 8,504.43 : x
  2. Step 2: Convert to fraction form
    15,218.64/21,002.53 = 8,504.43/x
  3. Step 3: Cross multiply
    15,218.64x = 21,002.53 × 8,504.43
  4. Step 4: Simplify right side
    15,218.64x = 178,614,441.20
  5. Step 5: Solve for x
    x = 178,614,441.20/15,218.64
  6. Step 6: Final answer
    x = 11,736.56

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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.