Home / 19,860.86-29,791.26-5,069.78

Finding the Fourth Proportional to 19,860.86, 29,791.26 and 5,069.78

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Solution

The fourth proportional to 19,860.86, 29,791.26 and 5,069.78 is: 7,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.86 : 29,791.26 = 5,069.78 : x
  2. Step 2: Convert to fraction form
    19,860.86/29,791.26 = 5,069.78/x
  3. Step 3: Cross multiply
    19,860.86x = 29,791.26 × 5,069.78
  4. Step 4: Simplify right side
    19,860.86x = 151,034,966.15
  5. Step 5: Solve for x
    x = 151,034,966.15/19,860.86
  6. Step 6: Final answer
    x = 7,604.66

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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.