Home / 14,123.19-21,195.71-7,554.90

Finding the Fourth Proportional to 14,123.19, 21,195.71 and 7,554.90

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Solution

The fourth proportional to 14,123.19, 21,195.71 and 7,554.90 is: 11,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.19 : 21,195.71 = 7,554.90 : x
  2. Step 2: Convert to fraction form
    14,123.19/21,195.71 = 7,554.90/x
  3. Step 3: Cross multiply
    14,123.19x = 21,195.71 × 7,554.90
  4. Step 4: Simplify right side
    14,123.19x = 160,131,469.48
  5. Step 5: Solve for x
    x = 160,131,469.48/14,123.19
  6. Step 6: Final answer
    x = 11,338.19

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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.