Home / 11,339.93-15,646.68-6,862.79

Finding the Fourth Proportional to 11,339.93, 15,646.68 and 6,862.79

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Solution

The fourth proportional to 11,339.93, 15,646.68 and 6,862.79 is: 9,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.93 : 15,646.68 = 6,862.79 : x
  2. Step 2: Convert to fraction form
    11,339.93/15,646.68 = 6,862.79/x
  3. Step 3: Cross multiply
    11,339.93x = 15,646.68 × 6,862.79
  4. Step 4: Simplify right side
    11,339.93x = 107,379,800.80
  5. Step 5: Solve for x
    x = 107,379,800.80/11,339.93
  6. Step 6: Final answer
    x = 9,469.18

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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.