Home / 11,520.80-17,277.48-3,727.76

Finding the Fourth Proportional to 11,520.80, 17,277.48 and 3,727.76

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Solution

The fourth proportional to 11,520.80, 17,277.48 and 3,727.76 is: 5,590.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.80 : 17,277.48 = 3,727.76 : x
  2. Step 2: Convert to fraction form
    11,520.80/17,277.48 = 3,727.76/x
  3. Step 3: Cross multiply
    11,520.80x = 17,277.48 × 3,727.76
  4. Step 4: Simplify right side
    11,520.80x = 64,406,298.84
  5. Step 5: Solve for x
    x = 64,406,298.84/11,520.80
  6. Step 6: Final answer
    x = 5,590.44

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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.