Home / 9,309.26-12,846.78-5,117.78

Finding the Fourth Proportional to 9,309.26, 12,846.78 and 5,117.78

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Solution

The fourth proportional to 9,309.26, 12,846.78 and 5,117.78 is: 7,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.26 : 12,846.78 = 5,117.78 : x
  2. Step 2: Convert to fraction form
    9,309.26/12,846.78 = 5,117.78/x
  3. Step 3: Cross multiply
    9,309.26x = 12,846.78 × 5,117.78
  4. Step 4: Simplify right side
    9,309.26x = 65,746,993.75
  5. Step 5: Solve for x
    x = 65,746,993.75/9,309.26
  6. Step 6: Final answer
    x = 7,062.54

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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.