Home / 12,235.47-18,350.78-5,992.80

Finding the Fourth Proportional to 12,235.47, 18,350.78 and 5,992.80

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Solution

The fourth proportional to 12,235.47, 18,350.78 and 5,992.80 is: 8,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.47 : 18,350.78 = 5,992.80 : x
  2. Step 2: Convert to fraction form
    12,235.47/18,350.78 = 5,992.80/x
  3. Step 3: Cross multiply
    12,235.47x = 18,350.78 × 5,992.80
  4. Step 4: Simplify right side
    12,235.47x = 109,972,524.42
  5. Step 5: Solve for x
    x = 109,972,524.42/12,235.47
  6. Step 6: Final answer
    x = 8,988.01

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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.