Home / 8,326.48-12,491.22-2,779.28

Finding the Fourth Proportional to 8,326.48, 12,491.22 and 2,779.28

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Solution

The fourth proportional to 8,326.48, 12,491.22 and 2,779.28 is: 4,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.48 : 12,491.22 = 2,779.28 : x
  2. Step 2: Convert to fraction form
    8,326.48/12,491.22 = 2,779.28/x
  3. Step 3: Cross multiply
    8,326.48x = 12,491.22 × 2,779.28
  4. Step 4: Simplify right side
    8,326.48x = 34,716,597.92
  5. Step 5: Solve for x
    x = 34,716,597.92/8,326.48
  6. Step 6: Final answer
    x = 4,169.42

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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.