Home / 11,575.86-15,974.79-6,270.80

Finding the Fourth Proportional to 11,575.86, 15,974.79 and 6,270.80

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Solution

The fourth proportional to 11,575.86, 15,974.79 and 6,270.80 is: 8,653.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,575.86 : 15,974.79 = 6,270.80 : x
  2. Step 2: Convert to fraction form
    11,575.86/15,974.79 = 6,270.80/x
  3. Step 3: Cross multiply
    11,575.86x = 15,974.79 × 6,270.80
  4. Step 4: Simplify right side
    11,575.86x = 100,174,633.26
  5. Step 5: Solve for x
    x = 100,174,633.26/11,575.86
  6. Step 6: Final answer
    x = 8,653.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.