Home / 11,291.28-16,940.40-5,056.56

Finding the Fourth Proportional to 11,291.28, 16,940.40 and 5,056.56

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Solution

The fourth proportional to 11,291.28, 16,940.40 and 5,056.56 is: 7,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.28 : 16,940.40 = 5,056.56 : x
  2. Step 2: Convert to fraction form
    11,291.28/16,940.40 = 5,056.56/x
  3. Step 3: Cross multiply
    11,291.28x = 16,940.40 × 5,056.56
  4. Step 4: Simplify right side
    11,291.28x = 85,660,149.02
  5. Step 5: Solve for x
    x = 85,660,149.02/11,291.28
  6. Step 6: Final answer
    x = 7,586.40

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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.