Home / 13,724.55-20,580.75-4,959.54

Finding the Fourth Proportional to 13,724.55, 20,580.75 and 4,959.54

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Solution

The fourth proportional to 13,724.55, 20,580.75 and 4,959.54 is: 7,437.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.55 : 20,580.75 = 4,959.54 : x
  2. Step 2: Convert to fraction form
    13,724.55/20,580.75 = 4,959.54/x
  3. Step 3: Cross multiply
    13,724.55x = 20,580.75 × 4,959.54
  4. Step 4: Simplify right side
    13,724.55x = 102,071,052.86
  5. Step 5: Solve for x
    x = 102,071,052.86/13,724.55
  6. Step 6: Final answer
    x = 7,437.11

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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.