Home / 11,209.20-16,813.80-10,662.45

Finding the Fourth Proportional to 11,209.20, 16,813.80 and 10,662.45

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Solution

The fourth proportional to 11,209.20, 16,813.80 and 10,662.45 is: 15,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.20 : 16,813.80 = 10,662.45 : x
  2. Step 2: Convert to fraction form
    11,209.20/16,813.80 = 10,662.45/x
  3. Step 3: Cross multiply
    11,209.20x = 16,813.80 × 10,662.45
  4. Step 4: Simplify right side
    11,209.20x = 179,276,301.81
  5. Step 5: Solve for x
    x = 179,276,301.81/11,209.20
  6. Step 6: Final answer
    x = 15,993.68

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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.