Home / 16,783.95-25,121.13-12,340.44

Finding the Fourth Proportional to 16,783.95, 25,121.13 and 12,340.44

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Solution

The fourth proportional to 16,783.95, 25,121.13 and 12,340.44 is: 18,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,783.95 : 25,121.13 = 12,340.44 : x
  2. Step 2: Convert to fraction form
    16,783.95/25,121.13 = 12,340.44/x
  3. Step 3: Cross multiply
    16,783.95x = 25,121.13 × 12,340.44
  4. Step 4: Simplify right side
    16,783.95x = 310,005,797.50
  5. Step 5: Solve for x
    x = 310,005,797.50/16,783.95
  6. Step 6: Final answer
    x = 18,470.37

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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.