Home / 8,290.12-12,406.02-6,326.68

Finding the Fourth Proportional to 8,290.12, 12,406.02 and 6,326.68

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Solution

The fourth proportional to 8,290.12, 12,406.02 and 6,326.68 is: 9,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.12 : 12,406.02 = 6,326.68 : x
  2. Step 2: Convert to fraction form
    8,290.12/12,406.02 = 6,326.68/x
  3. Step 3: Cross multiply
    8,290.12x = 12,406.02 × 6,326.68
  4. Step 4: Simplify right side
    8,290.12x = 78,488,918.61
  5. Step 5: Solve for x
    x = 78,488,918.61/8,290.12
  6. Step 6: Final answer
    x = 9,467.77

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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.