Home / 14,391.64-21,581.78-6,993.92

Finding the Fourth Proportional to 14,391.64, 21,581.78 and 6,993.92

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Solution

The fourth proportional to 14,391.64, 21,581.78 and 6,993.92 is: 10,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.64 : 21,581.78 = 6,993.92 : x
  2. Step 2: Convert to fraction form
    14,391.64/21,581.78 = 6,993.92/x
  3. Step 3: Cross multiply
    14,391.64x = 21,581.78 × 6,993.92
  4. Step 4: Simplify right side
    14,391.64x = 150,941,242.78
  5. Step 5: Solve for x
    x = 150,941,242.78/14,391.64
  6. Step 6: Final answer
    x = 10,488.12

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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.