Home / 14,144.10-21,200.66-7,112.90

Finding the Fourth Proportional to 14,144.10, 21,200.66 and 7,112.90

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Solution

The fourth proportional to 14,144.10, 21,200.66 and 7,112.90 is: 10,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.10 : 21,200.66 = 7,112.90 : x
  2. Step 2: Convert to fraction form
    14,144.10/21,200.66 = 7,112.90/x
  3. Step 3: Cross multiply
    14,144.10x = 21,200.66 × 7,112.90
  4. Step 4: Simplify right side
    14,144.10x = 150,798,032.95
  5. Step 5: Solve for x
    x = 150,798,032.95/14,144.10
  6. Step 6: Final answer
    x = 10,661.55

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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.