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Finding the Fourth Proportional to 26,687.94, 40,038.88 and 7,967.98

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Solution

The fourth proportional to 26,687.94, 40,038.88 and 7,967.98 is: 11,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.94 : 40,038.88 = 7,967.98 : x
  2. Step 2: Convert to fraction form
    26,687.94/40,038.88 = 7,967.98/x
  3. Step 3: Cross multiply
    26,687.94x = 40,038.88 × 7,967.98
  4. Step 4: Simplify right side
    26,687.94x = 319,028,755.03
  5. Step 5: Solve for x
    x = 319,028,755.03/26,687.94
  6. Step 6: Final answer
    x = 11,954.04

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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.