Home / 16,772.02-25,122.21-12,778.90

Finding the Fourth Proportional to 16,772.02, 25,122.21 and 12,778.90

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Solution

The fourth proportional to 16,772.02, 25,122.21 and 12,778.90 is: 19,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.02 : 25,122.21 = 12,778.90 : x
  2. Step 2: Convert to fraction form
    16,772.02/25,122.21 = 12,778.90/x
  3. Step 3: Cross multiply
    16,772.02x = 25,122.21 × 12,778.90
  4. Step 4: Simplify right side
    16,772.02x = 321,034,209.37
  5. Step 5: Solve for x
    x = 321,034,209.37/16,772.02
  6. Step 6: Final answer
    x = 19,141.06

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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.