Home / 8,920.05-13,376.19-4,759.12

Finding the Fourth Proportional to 8,920.05, 13,376.19 and 4,759.12

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Solution

The fourth proportional to 8,920.05, 13,376.19 and 4,759.12 is: 7,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.05 : 13,376.19 = 4,759.12 : x
  2. Step 2: Convert to fraction form
    8,920.05/13,376.19 = 4,759.12/x
  3. Step 3: Cross multiply
    8,920.05x = 13,376.19 × 4,759.12
  4. Step 4: Simplify right side
    8,920.05x = 63,658,893.35
  5. Step 5: Solve for x
    x = 63,658,893.35/8,920.05
  6. Step 6: Final answer
    x = 7,136.61

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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.