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Finding the Fourth Proportional to 26,987.78, 40,456.98 and 9,448.04

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Solution

The fourth proportional to 26,987.78, 40,456.98 and 9,448.04 is: 14,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,987.78 : 40,456.98 = 9,448.04 : x
  2. Step 2: Convert to fraction form
    26,987.78/40,456.98 = 9,448.04/x
  3. Step 3: Cross multiply
    26,987.78x = 40,456.98 × 9,448.04
  4. Step 4: Simplify right side
    26,987.78x = 382,239,165.32
  5. Step 5: Solve for x
    x = 382,239,165.32/26,987.78
  6. Step 6: Final answer
    x = 14,163.42

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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.