Home / 8,724.52-13,087.60-2,881.20

Finding the Fourth Proportional to 8,724.52, 13,087.60 and 2,881.20

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Solution

The fourth proportional to 8,724.52, 13,087.60 and 2,881.20 is: 4,322.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.52 : 13,087.60 = 2,881.20 : x
  2. Step 2: Convert to fraction form
    8,724.52/13,087.60 = 2,881.20/x
  3. Step 3: Cross multiply
    8,724.52x = 13,087.60 × 2,881.20
  4. Step 4: Simplify right side
    8,724.52x = 37,707,993.12
  5. Step 5: Solve for x
    x = 37,707,993.12/8,724.52
  6. Step 6: Final answer
    x = 4,322.07

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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.