Home / 18,726.44-28,074.78-10,409.32

Finding the Fourth Proportional to 18,726.44, 28,074.78 and 10,409.32

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Solution

The fourth proportional to 18,726.44, 28,074.78 and 10,409.32 is: 15,605.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.44 : 28,074.78 = 10,409.32 : x
  2. Step 2: Convert to fraction form
    18,726.44/28,074.78 = 10,409.32/x
  3. Step 3: Cross multiply
    18,726.44x = 28,074.78 × 10,409.32
  4. Step 4: Simplify right side
    18,726.44x = 292,239,368.95
  5. Step 5: Solve for x
    x = 292,239,368.95/18,726.44
  6. Step 6: Final answer
    x = 15,605.71

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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.