Home / 16,878.20-23,291.32-9,324.40

Finding the Fourth Proportional to 16,878.20, 23,291.32 and 9,324.40

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Solution

The fourth proportional to 16,878.20, 23,291.32 and 9,324.40 is: 12,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.20 : 23,291.32 = 9,324.40 : x
  2. Step 2: Convert to fraction form
    16,878.20/23,291.32 = 9,324.40/x
  3. Step 3: Cross multiply
    16,878.20x = 23,291.32 × 9,324.40
  4. Step 4: Simplify right side
    16,878.20x = 217,177,584.21
  5. Step 5: Solve for x
    x = 217,177,584.21/16,878.20
  6. Step 6: Final answer
    x = 12,867.34

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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.