Home / 11,118.80-16,697.40-10,773.20

Finding the Fourth Proportional to 11,118.80, 16,697.40 and 10,773.20

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Solution

The fourth proportional to 11,118.80, 16,697.40 and 10,773.20 is: 16,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.80 : 16,697.40 = 10,773.20 : x
  2. Step 2: Convert to fraction form
    11,118.80/16,697.40 = 10,773.20/x
  3. Step 3: Cross multiply
    11,118.80x = 16,697.40 × 10,773.20
  4. Step 4: Simplify right side
    11,118.80x = 179,884,429.68
  5. Step 5: Solve for x
    x = 179,884,429.68/11,118.80
  6. Step 6: Final answer
    x = 16,178.40

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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.