Home / 11,350.90-15,664.69-6,872.12

Finding the Fourth Proportional to 11,350.90, 15,664.69 and 6,872.12

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Solution

The fourth proportional to 11,350.90, 15,664.69 and 6,872.12 is: 9,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,350.90 : 15,664.69 = 6,872.12 : x
  2. Step 2: Convert to fraction form
    11,350.90/15,664.69 = 6,872.12/x
  3. Step 3: Cross multiply
    11,350.90x = 15,664.69 × 6,872.12
  4. Step 4: Simplify right side
    11,350.90x = 107,649,629.44
  5. Step 5: Solve for x
    x = 107,649,629.44/11,350.90
  6. Step 6: Final answer
    x = 9,483.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.