Home / 17,690.43-26,531.65-5,211.30

Finding the Fourth Proportional to 17,690.43, 26,531.65 and 5,211.30

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Solution

The fourth proportional to 17,690.43, 26,531.65 and 5,211.30 is: 7,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.43 : 26,531.65 = 5,211.30 : x
  2. Step 2: Convert to fraction form
    17,690.43/26,531.65 = 5,211.30/x
  3. Step 3: Cross multiply
    17,690.43x = 26,531.65 × 5,211.30
  4. Step 4: Simplify right side
    17,690.43x = 138,264,387.65
  5. Step 5: Solve for x
    x = 138,264,387.65/17,690.43
  6. Step 6: Final answer
    x = 7,815.77

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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.