Home / 16,690.23-25,020.75-8,358.57

Finding the Fourth Proportional to 16,690.23, 25,020.75 and 8,358.57

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Solution

The fourth proportional to 16,690.23, 25,020.75 and 8,358.57 is: 12,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,690.23 : 25,020.75 = 8,358.57 : x
  2. Step 2: Convert to fraction form
    16,690.23/25,020.75 = 8,358.57/x
  3. Step 3: Cross multiply
    16,690.23x = 25,020.75 × 8,358.57
  4. Step 4: Simplify right side
    16,690.23x = 209,137,690.33
  5. Step 5: Solve for x
    x = 209,137,690.33/16,690.23
  6. Step 6: Final answer
    x = 12,530.55

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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.