Home / 9,099.36-12,557.57-5,120.91

Finding the Fourth Proportional to 9,099.36, 12,557.57 and 5,120.91

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Solution

The fourth proportional to 9,099.36, 12,557.57 and 5,120.91 is: 7,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.36 : 12,557.57 = 5,120.91 : x
  2. Step 2: Convert to fraction form
    9,099.36/12,557.57 = 5,120.91/x
  3. Step 3: Cross multiply
    9,099.36x = 12,557.57 × 5,120.91
  4. Step 4: Simplify right side
    9,099.36x = 64,306,160.18
  5. Step 5: Solve for x
    x = 64,306,160.18/9,099.36
  6. Step 6: Final answer
    x = 7,067.11

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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.