Home / 19,780.55-29,670.96-8,093.77

Finding the Fourth Proportional to 19,780.55, 29,670.96 and 8,093.77

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Solution

The fourth proportional to 19,780.55, 29,670.96 and 8,093.77 is: 12,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.55 : 29,670.96 = 8,093.77 : x
  2. Step 2: Convert to fraction form
    19,780.55/29,670.96 = 8,093.77/x
  3. Step 3: Cross multiply
    19,780.55x = 29,670.96 × 8,093.77
  4. Step 4: Simplify right side
    19,780.55x = 240,150,003.47
  5. Step 5: Solve for x
    x = 240,150,003.47/19,780.55
  6. Step 6: Final answer
    x = 12,140.71

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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.