Home / 13,857.02-20,785.56-3,468.80

Finding the Fourth Proportional to 13,857.02, 20,785.56 and 3,468.80

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Solution

The fourth proportional to 13,857.02, 20,785.56 and 3,468.80 is: 5,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.02 : 20,785.56 = 3,468.80 : x
  2. Step 2: Convert to fraction form
    13,857.02/20,785.56 = 3,468.80/x
  3. Step 3: Cross multiply
    13,857.02x = 20,785.56 × 3,468.80
  4. Step 4: Simplify right side
    13,857.02x = 72,100,950.53
  5. Step 5: Solve for x
    x = 72,100,950.53/13,857.02
  6. Step 6: Final answer
    x = 5,203.21

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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.