Home / 13,124.52-19,695.30-7,855.56

Finding the Fourth Proportional to 13,124.52, 19,695.30 and 7,855.56

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Solution

The fourth proportional to 13,124.52, 19,695.30 and 7,855.56 is: 11,788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.52 : 19,695.30 = 7,855.56 : x
  2. Step 2: Convert to fraction form
    13,124.52/19,695.30 = 7,855.56/x
  3. Step 3: Cross multiply
    13,124.52x = 19,695.30 × 7,855.56
  4. Step 4: Simplify right side
    13,124.52x = 154,717,610.87
  5. Step 5: Solve for x
    x = 154,717,610.87/13,124.52
  6. Step 6: Final answer
    x = 11,788.44

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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.