Home / 18,966.17-28,443.99-5,811.23

Finding the Fourth Proportional to 18,966.17, 28,443.99 and 5,811.23

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Solution

The fourth proportional to 18,966.17, 28,443.99 and 5,811.23 is: 8,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.17 : 28,443.99 = 5,811.23 : x
  2. Step 2: Convert to fraction form
    18,966.17/28,443.99 = 5,811.23/x
  3. Step 3: Cross multiply
    18,966.17x = 28,443.99 × 5,811.23
  4. Step 4: Simplify right side
    18,966.17x = 165,294,568.01
  5. Step 5: Solve for x
    x = 165,294,568.01/18,966.17
  6. Step 6: Final answer
    x = 8,715.23

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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.