Home / 10,385.45-14,331.82-6,404.97

Finding the Fourth Proportional to 10,385.45, 14,331.82 and 6,404.97

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Solution

The fourth proportional to 10,385.45, 14,331.82 and 6,404.97 is: 8,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.45 : 14,331.82 = 6,404.97 : x
  2. Step 2: Convert to fraction form
    10,385.45/14,331.82 = 6,404.97/x
  3. Step 3: Cross multiply
    10,385.45x = 14,331.82 × 6,404.97
  4. Step 4: Simplify right side
    10,385.45x = 91,794,877.15
  5. Step 5: Solve for x
    x = 91,794,877.15/10,385.45
  6. Step 6: Final answer
    x = 8,838.80

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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.