Home / 8,327.28-11,491.56-4,790.40

Finding the Fourth Proportional to 8,327.28, 11,491.56 and 4,790.40

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Solution

The fourth proportional to 8,327.28, 11,491.56 and 4,790.40 is: 6,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.28 : 11,491.56 = 4,790.40 : x
  2. Step 2: Convert to fraction form
    8,327.28/11,491.56 = 4,790.40/x
  3. Step 3: Cross multiply
    8,327.28x = 11,491.56 × 4,790.40
  4. Step 4: Simplify right side
    8,327.28x = 55,049,169.02
  5. Step 5: Solve for x
    x = 55,049,169.02/8,327.28
  6. Step 6: Final answer
    x = 6,610.70

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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.