Home / 15,217.58-20,998.89-8,502.28

Finding the Fourth Proportional to 15,217.58, 20,998.89 and 8,502.28

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Solution

The fourth proportional to 15,217.58, 20,998.89 and 8,502.28 is: 11,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,217.58 : 20,998.89 = 8,502.28 : x
  2. Step 2: Convert to fraction form
    15,217.58/20,998.89 = 8,502.28/x
  3. Step 3: Cross multiply
    15,217.58x = 20,998.89 × 8,502.28
  4. Step 4: Simplify right side
    15,217.58x = 178,538,389.97
  5. Step 5: Solve for x
    x = 178,538,389.97/15,217.58
  6. Step 6: Final answer
    x = 11,732.38

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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.