Home / 11,199.42-16,766.70-8,437.72

Finding the Fourth Proportional to 11,199.42, 16,766.70 and 8,437.72

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Solution

The fourth proportional to 11,199.42, 16,766.70 and 8,437.72 is: 12,632.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.42 : 16,766.70 = 8,437.72 : x
  2. Step 2: Convert to fraction form
    11,199.42/16,766.70 = 8,437.72/x
  3. Step 3: Cross multiply
    11,199.42x = 16,766.70 × 8,437.72
  4. Step 4: Simplify right side
    11,199.42x = 141,472,719.92
  5. Step 5: Solve for x
    x = 141,472,719.92/11,199.42
  6. Step 6: Final answer
    x = 12,632.15

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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.