Home / 16,188.45-22,340.93-9,115.53

Finding the Fourth Proportional to 16,188.45, 22,340.93 and 9,115.53

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Solution

The fourth proportional to 16,188.45, 22,340.93 and 9,115.53 is: 12,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.45 : 22,340.93 = 9,115.53 : x
  2. Step 2: Convert to fraction form
    16,188.45/22,340.93 = 9,115.53/x
  3. Step 3: Cross multiply
    16,188.45x = 22,340.93 × 9,115.53
  4. Step 4: Simplify right side
    16,188.45x = 203,649,339.56
  5. Step 5: Solve for x
    x = 203,649,339.56/16,188.45
  6. Step 6: Final answer
    x = 12,579.92

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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.