Home / 8,908.72-13,378.28-7,426.44

Finding the Fourth Proportional to 8,908.72, 13,378.28 and 7,426.44

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Solution

The fourth proportional to 8,908.72, 13,378.28 and 7,426.44 is: 11,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.72 : 13,378.28 = 7,426.44 : x
  2. Step 2: Convert to fraction form
    8,908.72/13,378.28 = 7,426.44/x
  3. Step 3: Cross multiply
    8,908.72x = 13,378.28 × 7,426.44
  4. Step 4: Simplify right side
    8,908.72x = 99,352,993.72
  5. Step 5: Solve for x
    x = 99,352,993.72/8,908.72
  6. Step 6: Final answer
    x = 11,152.33

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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.