Home / 11,426.82-15,776.55-8,788.02

Finding the Fourth Proportional to 11,426.82, 15,776.55 and 8,788.02

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Solution

The fourth proportional to 11,426.82, 15,776.55 and 8,788.02 is: 12,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.82 : 15,776.55 = 8,788.02 : x
  2. Step 2: Convert to fraction form
    11,426.82/15,776.55 = 8,788.02/x
  3. Step 3: Cross multiply
    11,426.82x = 15,776.55 × 8,788.02
  4. Step 4: Simplify right side
    11,426.82x = 138,644,636.93
  5. Step 5: Solve for x
    x = 138,644,636.93/11,426.82
  6. Step 6: Final answer
    x = 12,133.27

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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.