Home / 19,554.78-29,336.42-6,406.66

Finding the Fourth Proportional to 19,554.78, 29,336.42 and 6,406.66

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Solution

The fourth proportional to 19,554.78, 29,336.42 and 6,406.66 is: 9,611.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,554.78 : 29,336.42 = 6,406.66 : x
  2. Step 2: Convert to fraction form
    19,554.78/29,336.42 = 6,406.66/x
  3. Step 3: Cross multiply
    19,554.78x = 29,336.42 × 6,406.66
  4. Step 4: Simplify right side
    19,554.78x = 187,948,468.56
  5. Step 5: Solve for x
    x = 187,948,468.56/19,554.78
  6. Step 6: Final answer
    x = 9,611.38

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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.