Home / 12,717.70-19,071.15-6,145.90

Finding the Fourth Proportional to 12,717.70, 19,071.15 and 6,145.90

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Solution

The fourth proportional to 12,717.70, 19,071.15 and 6,145.90 is: 9,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.70 : 19,071.15 = 6,145.90 : x
  2. Step 2: Convert to fraction form
    12,717.70/19,071.15 = 6,145.90/x
  3. Step 3: Cross multiply
    12,717.70x = 19,071.15 × 6,145.90
  4. Step 4: Simplify right side
    12,717.70x = 117,209,380.79
  5. Step 5: Solve for x
    x = 117,209,380.79/12,717.70
  6. Step 6: Final answer
    x = 9,216.24

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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.