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Finding the Fourth Proportional to 17,959.80, 26,941.05 and 4,811.88

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Solution

The fourth proportional to 17,959.80, 26,941.05 and 4,811.88 is: 7,218.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,959.80 : 26,941.05 = 4,811.88 : x
  2. Step 2: Convert to fraction form
    17,959.80/26,941.05 = 4,811.88/x
  3. Step 3: Cross multiply
    17,959.80x = 26,941.05 × 4,811.88
  4. Step 4: Simplify right side
    17,959.80x = 129,637,099.67
  5. Step 5: Solve for x
    x = 129,637,099.67/17,959.80
  6. Step 6: Final answer
    x = 7,218.18

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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.