Home / 8,747.40-13,122.70-3,553.80

Finding the Fourth Proportional to 8,747.40, 13,122.70 and 3,553.80

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Solution

The fourth proportional to 8,747.40, 13,122.70 and 3,553.80 is: 5,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.40 : 13,122.70 = 3,553.80 : x
  2. Step 2: Convert to fraction form
    8,747.40/13,122.70 = 3,553.80/x
  3. Step 3: Cross multiply
    8,747.40x = 13,122.70 × 3,553.80
  4. Step 4: Simplify right side
    8,747.40x = 46,635,451.26
  5. Step 5: Solve for x
    x = 46,635,451.26/8,747.40
  6. Step 6: Final answer
    x = 5,331.35

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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.