Home / 13,755.98-20,633.78-4,395.87

Finding the Fourth Proportional to 13,755.98, 20,633.78 and 4,395.87

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Solution

The fourth proportional to 13,755.98, 20,633.78 and 4,395.87 is: 6,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.98 : 20,633.78 = 4,395.87 : x
  2. Step 2: Convert to fraction form
    13,755.98/20,633.78 = 4,395.87/x
  3. Step 3: Cross multiply
    13,755.98x = 20,633.78 × 4,395.87
  4. Step 4: Simplify right side
    13,755.98x = 90,703,392.51
  5. Step 5: Solve for x
    x = 90,703,392.51/13,755.98
  6. Step 6: Final answer
    x = 6,593.75

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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.