Home / 16,788.80-23,169.18-9,235.72

Finding the Fourth Proportional to 16,788.80, 23,169.18 and 9,235.72

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Solution

The fourth proportional to 16,788.80, 23,169.18 and 9,235.72 is: 12,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,788.80 : 23,169.18 = 9,235.72 : x
  2. Step 2: Convert to fraction form
    16,788.80/23,169.18 = 9,235.72/x
  3. Step 3: Cross multiply
    16,788.80x = 23,169.18 × 9,235.72
  4. Step 4: Simplify right side
    16,788.80x = 213,984,059.11
  5. Step 5: Solve for x
    x = 213,984,059.11/16,788.80
  6. Step 6: Final answer
    x = 12,745.64

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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.