Home / 7,921.36-11,873.52-5,150.02

Finding the Fourth Proportional to 7,921.36, 11,873.52 and 5,150.02

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Solution

The fourth proportional to 7,921.36, 11,873.52 and 5,150.02 is: 7,719.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.36 : 11,873.52 = 5,150.02 : x
  2. Step 2: Convert to fraction form
    7,921.36/11,873.52 = 5,150.02/x
  3. Step 3: Cross multiply
    7,921.36x = 11,873.52 × 5,150.02
  4. Step 4: Simplify right side
    7,921.36x = 61,148,865.47
  5. Step 5: Solve for x
    x = 61,148,865.47/7,921.36
  6. Step 6: Final answer
    x = 7,719.49

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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.