Home / 13,163.18-19,748.73-3,929.18

Finding the Fourth Proportional to 13,163.18, 19,748.73 and 3,929.18

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Solution

The fourth proportional to 13,163.18, 19,748.73 and 3,929.18 is: 5,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.18 : 19,748.73 = 3,929.18 : x
  2. Step 2: Convert to fraction form
    13,163.18/19,748.73 = 3,929.18/x
  3. Step 3: Cross multiply
    13,163.18x = 19,748.73 × 3,929.18
  4. Step 4: Simplify right side
    13,163.18x = 77,596,314.94
  5. Step 5: Solve for x
    x = 77,596,314.94/13,163.18
  6. Step 6: Final answer
    x = 5,894.95

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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.