Home / 11,555.40-17,333.10-11,101.80

Finding the Fourth Proportional to 11,555.40, 17,333.10 and 11,101.80

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Solution

The fourth proportional to 11,555.40, 17,333.10 and 11,101.80 is: 16,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.40 : 17,333.10 = 11,101.80 : x
  2. Step 2: Convert to fraction form
    11,555.40/17,333.10 = 11,101.80/x
  3. Step 3: Cross multiply
    11,555.40x = 17,333.10 × 11,101.80
  4. Step 4: Simplify right side
    11,555.40x = 192,428,609.58
  5. Step 5: Solve for x
    x = 192,428,609.58/11,555.40
  6. Step 6: Final answer
    x = 16,652.70

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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.