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Finding the Fourth Proportional to 26,666.98, 39,987.02 and 8,891.33

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Solution

The fourth proportional to 26,666.98, 39,987.02 and 8,891.33 is: 13,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,666.98 : 39,987.02 = 8,891.33 : x
  2. Step 2: Convert to fraction form
    26,666.98/39,987.02 = 8,891.33/x
  3. Step 3: Cross multiply
    26,666.98x = 39,987.02 × 8,891.33
  4. Step 4: Simplify right side
    26,666.98x = 355,537,790.54
  5. Step 5: Solve for x
    x = 355,537,790.54/26,666.98
  6. Step 6: Final answer
    x = 13,332.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.