Home / 18,550.40-25,633.50-13,505.87

Finding the Fourth Proportional to 18,550.40, 25,633.50 and 13,505.87

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Solution

The fourth proportional to 18,550.40, 25,633.50 and 13,505.87 is: 18,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.40 : 25,633.50 = 13,505.87 : x
  2. Step 2: Convert to fraction form
    18,550.40/25,633.50 = 13,505.87/x
  3. Step 3: Cross multiply
    18,550.40x = 25,633.50 × 13,505.87
  4. Step 4: Simplify right side
    18,550.40x = 346,202,590.48
  5. Step 5: Solve for x
    x = 346,202,590.48/18,550.40
  6. Step 6: Final answer
    x = 18,662.81

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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.