Home / 11,214.80-16,822.20-9,829.70

Finding the Fourth Proportional to 11,214.80, 16,822.20 and 9,829.70

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Solution

The fourth proportional to 11,214.80, 16,822.20 and 9,829.70 is: 14,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.80 : 16,822.20 = 9,829.70 : x
  2. Step 2: Convert to fraction form
    11,214.80/16,822.20 = 9,829.70/x
  3. Step 3: Cross multiply
    11,214.80x = 16,822.20 × 9,829.70
  4. Step 4: Simplify right side
    11,214.80x = 165,357,179.34
  5. Step 5: Solve for x
    x = 165,357,179.34/11,214.80
  6. Step 6: Final answer
    x = 14,744.55

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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.