Home / 13,511.04-20,266.56-5,719.92

Finding the Fourth Proportional to 13,511.04, 20,266.56 and 5,719.92

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Solution

The fourth proportional to 13,511.04, 20,266.56 and 5,719.92 is: 8,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.04 : 20,266.56 = 5,719.92 : x
  2. Step 2: Convert to fraction form
    13,511.04/20,266.56 = 5,719.92/x
  3. Step 3: Cross multiply
    13,511.04x = 20,266.56 × 5,719.92
  4. Step 4: Simplify right side
    13,511.04x = 115,923,101.88
  5. Step 5: Solve for x
    x = 115,923,101.88/13,511.04
  6. Step 6: Final answer
    x = 8,579.88

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1.5x scale

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.