Home / 13,563.99-20,339.59-5,247.92

Finding the Fourth Proportional to 13,563.99, 20,339.59 and 5,247.92

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Solution

The fourth proportional to 13,563.99, 20,339.59 and 5,247.92 is: 7,869.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.99 : 20,339.59 = 5,247.92 : x
  2. Step 2: Convert to fraction form
    13,563.99/20,339.59 = 5,247.92/x
  3. Step 3: Cross multiply
    13,563.99x = 20,339.59 × 5,247.92
  4. Step 4: Simplify right side
    13,563.99x = 106,740,541.15
  5. Step 5: Solve for x
    x = 106,740,541.15/13,563.99
  6. Step 6: Final answer
    x = 7,869.41

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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.