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Finding the Fourth Proportional to 16,191.88, 22,351.04 and 12,656.24

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Solution

The fourth proportional to 16,191.88, 22,351.04 and 12,656.24 is: 17,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,191.88 : 22,351.04 = 12,656.24 : x
  2. Step 2: Convert to fraction form
    16,191.88/22,351.04 = 12,656.24/x
  3. Step 3: Cross multiply
    16,191.88x = 22,351.04 × 12,656.24
  4. Step 4: Simplify right side
    16,191.88x = 282,880,126.49
  5. Step 5: Solve for x
    x = 282,880,126.49/16,191.88
  6. Step 6: Final answer
    x = 17,470.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.