Home / 19,697.88-29,550.18-7,218.84

Finding the Fourth Proportional to 19,697.88, 29,550.18 and 7,218.84

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Solution

The fourth proportional to 19,697.88, 29,550.18 and 7,218.84 is: 10,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697.88 : 29,550.18 = 7,218.84 : x
  2. Step 2: Convert to fraction form
    19,697.88/29,550.18 = 7,218.84/x
  3. Step 3: Cross multiply
    19,697.88x = 29,550.18 × 7,218.84
  4. Step 4: Simplify right side
    19,697.88x = 213,318,021.39
  5. Step 5: Solve for x
    x = 213,318,021.39/19,697.88
  6. Step 6: Final answer
    x = 10,829.49

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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.