Home / 15,054.72-20,777.76-8,766.96

Finding the Fourth Proportional to 15,054.72, 20,777.76 and 8,766.96

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Solution

The fourth proportional to 15,054.72, 20,777.76 and 8,766.96 is: 12,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.72 : 20,777.76 = 8,766.96 : x
  2. Step 2: Convert to fraction form
    15,054.72/20,777.76 = 8,766.96/x
  3. Step 3: Cross multiply
    15,054.72x = 20,777.76 × 8,766.96
  4. Step 4: Simplify right side
    15,054.72x = 182,157,790.81
  5. Step 5: Solve for x
    x = 182,157,790.81/15,054.72
  6. Step 6: Final answer
    x = 12,099.71

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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.