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Finding the Fourth Proportional to 17,690.30, 26,531.19 and 5,206.93

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Solution

The fourth proportional to 17,690.30, 26,531.19 and 5,206.93 is: 7,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.30 : 26,531.19 = 5,206.93 : x
  2. Step 2: Convert to fraction form
    17,690.30/26,531.19 = 5,206.93/x
  3. Step 3: Cross multiply
    17,690.30x = 26,531.19 × 5,206.93
  4. Step 4: Simplify right side
    17,690.30x = 138,145,890.46
  5. Step 5: Solve for x
    x = 138,145,890.46/17,690.30
  6. Step 6: Final answer
    x = 7,809.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.