Home / 19,780.54-29,670.72-8,093.76

Finding the Fourth Proportional to 19,780.54, 29,670.72 and 8,093.76

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Solution

The fourth proportional to 19,780.54, 29,670.72 and 8,093.76 is: 12,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.54 : 29,670.72 = 8,093.76 : x
  2. Step 2: Convert to fraction form
    19,780.54/29,670.72 = 8,093.76/x
  3. Step 3: Cross multiply
    19,780.54x = 29,670.72 × 8,093.76
  4. Step 4: Simplify right side
    19,780.54x = 240,147,757.52
  5. Step 5: Solve for x
    x = 240,147,757.52/19,780.54
  6. Step 6: Final answer
    x = 12,140.60

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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.