Home / 12,719.30-19,051.20-7,773.94

Finding the Fourth Proportional to 12,719.30, 19,051.20 and 7,773.94

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Solution

The fourth proportional to 12,719.30, 19,051.20 and 7,773.94 is: 11,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.30 : 19,051.20 = 7,773.94 : x
  2. Step 2: Convert to fraction form
    12,719.30/19,051.20 = 7,773.94/x
  3. Step 3: Cross multiply
    12,719.30x = 19,051.20 × 7,773.94
  4. Step 4: Simplify right side
    12,719.30x = 148,102,909.54
  5. Step 5: Solve for x
    x = 148,102,909.54/12,719.30
  6. Step 6: Final answer
    x = 11,643.96

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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.