Home / 7,766.91-10,718.37-4,230.09

Finding the Fourth Proportional to 7,766.91, 10,718.37 and 4,230.09

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Solution

The fourth proportional to 7,766.91, 10,718.37 and 4,230.09 is: 5,837.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.91 : 10,718.37 = 4,230.09 : x
  2. Step 2: Convert to fraction form
    7,766.91/10,718.37 = 4,230.09/x
  3. Step 3: Cross multiply
    7,766.91x = 10,718.37 × 4,230.09
  4. Step 4: Simplify right side
    7,766.91x = 45,339,669.75
  5. Step 5: Solve for x
    x = 45,339,669.75/7,766.91
  6. Step 6: Final answer
    x = 5,837.54

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1.5x scale

Why These Related Problems?

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