Home / 8,724.61-13,054.57-5,216.60

Finding the Fourth Proportional to 8,724.61, 13,054.57 and 5,216.60

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Solution

The fourth proportional to 8,724.61, 13,054.57 and 5,216.60 is: 7,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.61 : 13,054.57 = 5,216.60 : x
  2. Step 2: Convert to fraction form
    8,724.61/13,054.57 = 5,216.60/x
  3. Step 3: Cross multiply
    8,724.61x = 13,054.57 × 5,216.60
  4. Step 4: Simplify right side
    8,724.61x = 68,100,489.46
  5. Step 5: Solve for x
    x = 68,100,489.46/8,724.61
  6. Step 6: Final answer
    x = 7,805.56

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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.