Home / 11,275.14-15,559.71-6,239.57

Finding the Fourth Proportional to 11,275.14, 15,559.71 and 6,239.57

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Solution

The fourth proportional to 11,275.14, 15,559.71 and 6,239.57 is: 8,610.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.14 : 15,559.71 = 6,239.57 : x
  2. Step 2: Convert to fraction form
    11,275.14/15,559.71 = 6,239.57/x
  3. Step 3: Cross multiply
    11,275.14x = 15,559.71 × 6,239.57
  4. Step 4: Simplify right side
    11,275.14x = 97,085,821.93
  5. Step 5: Solve for x
    x = 97,085,821.93/11,275.14
  6. Step 6: Final answer
    x = 8,610.61

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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.