Home / 7,928.24-11,867.52-5,290.56

Finding the Fourth Proportional to 7,928.24, 11,867.52 and 5,290.56

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Solution

The fourth proportional to 7,928.24, 11,867.52 and 5,290.56 is: 7,919.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.24 : 11,867.52 = 5,290.56 : x
  2. Step 2: Convert to fraction form
    7,928.24/11,867.52 = 5,290.56/x
  3. Step 3: Cross multiply
    7,928.24x = 11,867.52 × 5,290.56
  4. Step 4: Simplify right side
    7,928.24x = 62,785,826.61
  5. Step 5: Solve for x
    x = 62,785,826.61/7,928.24
  6. Step 6: Final answer
    x = 7,919.26

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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.