Home / 8,330.21-11,497.31-5,349.81

Finding the Fourth Proportional to 8,330.21, 11,497.31 and 5,349.81

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Solution

The fourth proportional to 8,330.21, 11,497.31 and 5,349.81 is: 7,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.21 : 11,497.31 = 5,349.81 : x
  2. Step 2: Convert to fraction form
    8,330.21/11,497.31 = 5,349.81/x
  3. Step 3: Cross multiply
    8,330.21x = 11,497.31 × 5,349.81
  4. Step 4: Simplify right side
    8,330.21x = 61,508,460.44
  5. Step 5: Solve for x
    x = 61,508,460.44/8,330.21
  6. Step 6: Final answer
    x = 7,383.78

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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.