Home / 8,214.48-11,350.44-7,164.72

Finding the Fourth Proportional to 8,214.48, 11,350.44 and 7,164.72

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Solution

The fourth proportional to 8,214.48, 11,350.44 and 7,164.72 is: 9,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.48 : 11,350.44 = 7,164.72 : x
  2. Step 2: Convert to fraction form
    8,214.48/11,350.44 = 7,164.72/x
  3. Step 3: Cross multiply
    8,214.48x = 11,350.44 × 7,164.72
  4. Step 4: Simplify right side
    8,214.48x = 81,322,724.48
  5. Step 5: Solve for x
    x = 81,322,724.48/8,214.48
  6. Step 6: Final answer
    x = 9,899.92

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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.