Home / 18,121.25-25,007.37-10,572.77

Finding the Fourth Proportional to 18,121.25, 25,007.37 and 10,572.77

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Solution

The fourth proportional to 18,121.25, 25,007.37 and 10,572.77 is: 14,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.25 : 25,007.37 = 10,572.77 : x
  2. Step 2: Convert to fraction form
    18,121.25/25,007.37 = 10,572.77/x
  3. Step 3: Cross multiply
    18,121.25x = 25,007.37 × 10,572.77
  4. Step 4: Simplify right side
    18,121.25x = 264,397,171.31
  5. Step 5: Solve for x
    x = 264,397,171.31/18,121.25
  6. Step 6: Final answer
    x = 14,590.45

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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.