Home / 8,320.08-11,489.80-5,177.68

Finding the Fourth Proportional to 8,320.08, 11,489.80 and 5,177.68

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Solution

The fourth proportional to 8,320.08, 11,489.80 and 5,177.68 is: 7,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.08 : 11,489.80 = 5,177.68 : x
  2. Step 2: Convert to fraction form
    8,320.08/11,489.80 = 5,177.68/x
  3. Step 3: Cross multiply
    8,320.08x = 11,489.80 × 5,177.68
  4. Step 4: Simplify right side
    8,320.08x = 59,490,507.66
  5. Step 5: Solve for x
    x = 59,490,507.66/8,320.08
  6. Step 6: Final answer
    x = 7,150.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.