Home / 13,533.16-20,308.38-5,219.88

Finding the Fourth Proportional to 13,533.16, 20,308.38 and 5,219.88

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Solution

The fourth proportional to 13,533.16, 20,308.38 and 5,219.88 is: 7,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.16 : 20,308.38 = 5,219.88 : x
  2. Step 2: Convert to fraction form
    13,533.16/20,308.38 = 5,219.88/x
  3. Step 3: Cross multiply
    13,533.16x = 20,308.38 × 5,219.88
  4. Step 4: Simplify right side
    13,533.16x = 106,007,306.59
  5. Step 5: Solve for x
    x = 106,007,306.59/13,533.16
  6. Step 6: Final answer
    x = 7,833.15

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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.