Home / 9,101.21-12,558.69-5,121.48

Finding the Fourth Proportional to 9,101.21, 12,558.69 and 5,121.48

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Solution

The fourth proportional to 9,101.21, 12,558.69 and 5,121.48 is: 7,067.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,101.21 : 12,558.69 = 5,121.48 : x
  2. Step 2: Convert to fraction form
    9,101.21/12,558.69 = 5,121.48/x
  3. Step 3: Cross multiply
    9,101.21x = 12,558.69 × 5,121.48
  4. Step 4: Simplify right side
    9,101.21x = 64,319,079.66
  5. Step 5: Solve for x
    x = 64,319,079.66/9,101.21
  6. Step 6: Final answer
    x = 7,067.09

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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.