Home / 13,716.16-20,574.18-3,328

Finding the Fourth Proportional to 13,716.16, 20,574.18 and 3,328

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Solution

The fourth proportional to 13,716.16, 20,574.18 and 3,328 is: 4,991.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.16 : 20,574.18 = 3,328 : x
  2. Step 2: Convert to fraction form
    13,716.16/20,574.18 = 3,328/x
  3. Step 3: Cross multiply
    13,716.16x = 20,574.18 × 3,328
  4. Step 4: Simplify right side
    13,716.16x = 68,470,871.04
  5. Step 5: Solve for x
    x = 68,470,871.04/13,716.16
  6. Step 6: Final answer
    x = 4,991.99

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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.