Home / 15,156.60-20,923.66-11,745.96

Finding the Fourth Proportional to 15,156.60, 20,923.66 and 11,745.96

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Solution

The fourth proportional to 15,156.60, 20,923.66 and 11,745.96 is: 16,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.60 : 20,923.66 = 11,745.96 : x
  2. Step 2: Convert to fraction form
    15,156.60/20,923.66 = 11,745.96/x
  3. Step 3: Cross multiply
    15,156.60x = 20,923.66 × 11,745.96
  4. Step 4: Simplify right side
    15,156.60x = 245,768,473.41
  5. Step 5: Solve for x
    x = 245,768,473.41/15,156.60
  6. Step 6: Final answer
    x = 16,215.28

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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.