Home / 11,548.28-15,942.75-8,889.86

Finding the Fourth Proportional to 11,548.28, 15,942.75 and 8,889.86

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Solution

The fourth proportional to 11,548.28, 15,942.75 and 8,889.86 is: 12,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,548.28 : 15,942.75 = 8,889.86 : x
  2. Step 2: Convert to fraction form
    11,548.28/15,942.75 = 8,889.86/x
  3. Step 3: Cross multiply
    11,548.28x = 15,942.75 × 8,889.86
  4. Step 4: Simplify right side
    11,548.28x = 141,728,815.52
  5. Step 5: Solve for x
    x = 141,728,815.52/11,548.28
  6. Step 6: Final answer
    x = 12,272.72

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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.