Home / 10,998.40-16,497.20-4,422.80

Finding the Fourth Proportional to 10,998.40, 16,497.20 and 4,422.80

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Solution

The fourth proportional to 10,998.40, 16,497.20 and 4,422.80 is: 6,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.40 : 16,497.20 = 4,422.80 : x
  2. Step 2: Convert to fraction form
    10,998.40/16,497.20 = 4,422.80/x
  3. Step 3: Cross multiply
    10,998.40x = 16,497.20 × 4,422.80
  4. Step 4: Simplify right side
    10,998.40x = 72,963,816.16
  5. Step 5: Solve for x
    x = 72,963,816.16/10,998.40
  6. Step 6: Final answer
    x = 6,634.04

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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.