Home / 8,813.28-12,159.26-5,227.42

Finding the Fourth Proportional to 8,813.28, 12,159.26 and 5,227.42

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Solution

The fourth proportional to 8,813.28, 12,159.26 and 5,227.42 is: 7,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.28 : 12,159.26 = 5,227.42 : x
  2. Step 2: Convert to fraction form
    8,813.28/12,159.26 = 5,227.42/x
  3. Step 3: Cross multiply
    8,813.28x = 12,159.26 × 5,227.42
  4. Step 4: Simplify right side
    8,813.28x = 63,561,558.91
  5. Step 5: Solve for x
    x = 63,561,558.91/8,813.28
  6. Step 6: Final answer
    x = 7,212.02

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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.