Home / 8,919.36-13,348.24-7,160.18

Finding the Fourth Proportional to 8,919.36, 13,348.24 and 7,160.18

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Solution

The fourth proportional to 8,919.36, 13,348.24 and 7,160.18 is: 10,715.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.36 : 13,348.24 = 7,160.18 : x
  2. Step 2: Convert to fraction form
    8,919.36/13,348.24 = 7,160.18/x
  3. Step 3: Cross multiply
    8,919.36x = 13,348.24 × 7,160.18
  4. Step 4: Simplify right side
    8,919.36x = 95,575,716.44
  5. Step 5: Solve for x
    x = 95,575,716.44/8,919.36
  6. Step 6: Final answer
    x = 10,715.54

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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.