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Finding the Fourth Proportional to 27,317.36, 40,978.94 and 8,597.98

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Solution

The fourth proportional to 27,317.36, 40,978.94 and 8,597.98 is: 12,897.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,317.36 : 40,978.94 = 8,597.98 : x
  2. Step 2: Convert to fraction form
    27,317.36/40,978.94 = 8,597.98/x
  3. Step 3: Cross multiply
    27,317.36x = 40,978.94 × 8,597.98
  4. Step 4: Simplify right side
    27,317.36x = 352,336,106.54
  5. Step 5: Solve for x
    x = 352,336,106.54/27,317.36
  6. Step 6: Final answer
    x = 12,897.88

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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.