Home / 12,814.20-19,190.52-6,557.76

Finding the Fourth Proportional to 12,814.20, 19,190.52 and 6,557.76

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Solution

The fourth proportional to 12,814.20, 19,190.52 and 6,557.76 is: 9,820.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.20 : 19,190.52 = 6,557.76 : x
  2. Step 2: Convert to fraction form
    12,814.20/19,190.52 = 6,557.76/x
  3. Step 3: Cross multiply
    12,814.20x = 19,190.52 × 6,557.76
  4. Step 4: Simplify right side
    12,814.20x = 125,846,824.44
  5. Step 5: Solve for x
    x = 125,846,824.44/12,814.20
  6. Step 6: Final answer
    x = 9,820.89

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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.