Home / 8,910.75-13,370.69-3,649.65

Finding the Fourth Proportional to 8,910.75, 13,370.69 and 3,649.65

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Solution

The fourth proportional to 8,910.75, 13,370.69 and 3,649.65 is: 5,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.75 : 13,370.69 = 3,649.65 : x
  2. Step 2: Convert to fraction form
    8,910.75/13,370.69 = 3,649.65/x
  3. Step 3: Cross multiply
    8,910.75x = 13,370.69 × 3,649.65
  4. Step 4: Simplify right side
    8,910.75x = 48,798,320.51
  5. Step 5: Solve for x
    x = 48,798,320.51/8,910.75
  6. Step 6: Final answer
    x = 5,476.34

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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.