Home / 14,120.08-21,151.40-11,331.65

Finding the Fourth Proportional to 14,120.08, 21,151.40 and 11,331.65

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Solution

The fourth proportional to 14,120.08, 21,151.40 and 11,331.65 is: 16,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.08 : 21,151.40 = 11,331.65 : x
  2. Step 2: Convert to fraction form
    14,120.08/21,151.40 = 11,331.65/x
  3. Step 3: Cross multiply
    14,120.08x = 21,151.40 × 11,331.65
  4. Step 4: Simplify right side
    14,120.08x = 239,680,258.03
  5. Step 5: Solve for x
    x = 239,680,258.03/14,120.08
  6. Step 6: Final answer
    x = 16,974.43

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1.5x scale

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.