Home / 9,151.94-12,629.14-5,173.11

Finding the Fourth Proportional to 9,151.94, 12,629.14 and 5,173.11

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Solution

The fourth proportional to 9,151.94, 12,629.14 and 5,173.11 is: 7,138.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.94 : 12,629.14 = 5,173.11 : x
  2. Step 2: Convert to fraction form
    9,151.94/12,629.14 = 5,173.11/x
  3. Step 3: Cross multiply
    9,151.94x = 12,629.14 × 5,173.11
  4. Step 4: Simplify right side
    9,151.94x = 65,331,917.49
  5. Step 5: Solve for x
    x = 65,331,917.49/9,151.94
  6. Step 6: Final answer
    x = 7,138.58

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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.