Home / 14,107.33-19,472.40-8,142.89

Finding the Fourth Proportional to 14,107.33, 19,472.40 and 8,142.89

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Solution

The fourth proportional to 14,107.33, 19,472.40 and 8,142.89 is: 11,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.33 : 19,472.40 = 8,142.89 : x
  2. Step 2: Convert to fraction form
    14,107.33/19,472.40 = 8,142.89/x
  3. Step 3: Cross multiply
    14,107.33x = 19,472.40 × 8,142.89
  4. Step 4: Simplify right side
    14,107.33x = 158,561,611.24
  5. Step 5: Solve for x
    x = 158,561,611.24/14,107.33
  6. Step 6: Final answer
    x = 11,239.66

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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.