Home / 13,867.84-20,803.52-5,433.28

Finding the Fourth Proportional to 13,867.84, 20,803.52 and 5,433.28

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Solution

The fourth proportional to 13,867.84, 20,803.52 and 5,433.28 is: 8,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.84 : 20,803.52 = 5,433.28 : x
  2. Step 2: Convert to fraction form
    13,867.84/20,803.52 = 5,433.28/x
  3. Step 3: Cross multiply
    13,867.84x = 20,803.52 × 5,433.28
  4. Step 4: Simplify right side
    13,867.84x = 113,031,349.15
  5. Step 5: Solve for x
    x = 113,031,349.15/13,867.84
  6. Step 6: Final answer
    x = 8,150.61

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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.