Home / 13,989.68-19,304.04-8,324.56

Finding the Fourth Proportional to 13,989.68, 19,304.04 and 8,324.56

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Solution

The fourth proportional to 13,989.68, 19,304.04 and 8,324.56 is: 11,486.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.68 : 19,304.04 = 8,324.56 : x
  2. Step 2: Convert to fraction form
    13,989.68/19,304.04 = 8,324.56/x
  3. Step 3: Cross multiply
    13,989.68x = 19,304.04 × 8,324.56
  4. Step 4: Simplify right side
    13,989.68x = 160,697,639.22
  5. Step 5: Solve for x
    x = 160,697,639.22/13,989.68
  6. Step 6: Final answer
    x = 11,486.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.