Home / 13,711.02-20,568.15-8,784.60

Finding the Fourth Proportional to 13,711.02, 20,568.15 and 8,784.60

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Solution

The fourth proportional to 13,711.02, 20,568.15 and 8,784.60 is: 13,177.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.02 : 20,568.15 = 8,784.60 : x
  2. Step 2: Convert to fraction form
    13,711.02/20,568.15 = 8,784.60/x
  3. Step 3: Cross multiply
    13,711.02x = 20,568.15 × 8,784.60
  4. Step 4: Simplify right side
    13,711.02x = 180,682,970.49
  5. Step 5: Solve for x
    x = 180,682,970.49/13,711.02
  6. Step 6: Final answer
    x = 13,177.94

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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.