Home / 7,286.09-10,919.63-5,291.48

Finding the Fourth Proportional to 7,286.09, 10,919.63 and 5,291.48

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Solution

The fourth proportional to 7,286.09, 10,919.63 and 5,291.48 is: 7,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.09 : 10,919.63 = 5,291.48 : x
  2. Step 2: Convert to fraction form
    7,286.09/10,919.63 = 5,291.48/x
  3. Step 3: Cross multiply
    7,286.09x = 10,919.63 × 5,291.48
  4. Step 4: Simplify right side
    7,286.09x = 57,780,922.70
  5. Step 5: Solve for x
    x = 57,780,922.70/7,286.09
  6. Step 6: Final answer
    x = 7,930.31

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1.5x scale

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.