Home / 14,101.53-21,135.78-7,077.75

Finding the Fourth Proportional to 14,101.53, 21,135.78 and 7,077.75

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Solution

The fourth proportional to 14,101.53, 21,135.78 and 7,077.75 is: 10,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.53 : 21,135.78 = 7,077.75 : x
  2. Step 2: Convert to fraction form
    14,101.53/21,135.78 = 7,077.75/x
  3. Step 3: Cross multiply
    14,101.53x = 21,135.78 × 7,077.75
  4. Step 4: Simplify right side
    14,101.53x = 149,593,766.90
  5. Step 5: Solve for x
    x = 149,593,766.90/14,101.53
  6. Step 6: Final answer
    x = 10,608.34

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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.