Home / 18,729.98-25,845.19-10,774.77

Finding the Fourth Proportional to 18,729.98, 25,845.19 and 10,774.77

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Solution

The fourth proportional to 18,729.98, 25,845.19 and 10,774.77 is: 14,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.98 : 25,845.19 = 10,774.77 : x
  2. Step 2: Convert to fraction form
    18,729.98/25,845.19 = 10,774.77/x
  3. Step 3: Cross multiply
    18,729.98x = 25,845.19 × 10,774.77
  4. Step 4: Simplify right side
    18,729.98x = 278,475,977.86
  5. Step 5: Solve for x
    x = 278,475,977.86/18,729.98
  6. Step 6: Final answer
    x = 14,867.93

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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.