Home / 8,169.61-12,246.69-6,404.82

Finding the Fourth Proportional to 8,169.61, 12,246.69 and 6,404.82

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Solution

The fourth proportional to 8,169.61, 12,246.69 and 6,404.82 is: 9,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.61 : 12,246.69 = 6,404.82 : x
  2. Step 2: Convert to fraction form
    8,169.61/12,246.69 = 6,404.82/x
  3. Step 3: Cross multiply
    8,169.61x = 12,246.69 × 6,404.82
  4. Step 4: Simplify right side
    8,169.61x = 78,437,892.03
  5. Step 5: Solve for x
    x = 78,437,892.03/8,169.61
  6. Step 6: Final answer
    x = 9,601.18

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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.