Home / 13,557.44-20,339.30-5,240.36

Finding the Fourth Proportional to 13,557.44, 20,339.30 and 5,240.36

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Solution

The fourth proportional to 13,557.44, 20,339.30 and 5,240.36 is: 7,861.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.44 : 20,339.30 = 5,240.36 : x
  2. Step 2: Convert to fraction form
    13,557.44/20,339.30 = 5,240.36/x
  3. Step 3: Cross multiply
    13,557.44x = 20,339.30 × 5,240.36
  4. Step 4: Simplify right side
    13,557.44x = 106,585,318.10
  5. Step 5: Solve for x
    x = 106,585,318.10/13,557.44
  6. Step 6: Final answer
    x = 7,861.76

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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.