Home / 8,511.90-12,778.29-6,674.70

Finding the Fourth Proportional to 8,511.90, 12,778.29 and 6,674.70

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Solution

The fourth proportional to 8,511.90, 12,778.29 and 6,674.70 is: 10,020.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.90 : 12,778.29 = 6,674.70 : x
  2. Step 2: Convert to fraction form
    8,511.90/12,778.29 = 6,674.70/x
  3. Step 3: Cross multiply
    8,511.90x = 12,778.29 × 6,674.70
  4. Step 4: Simplify right side
    8,511.90x = 85,291,252.26
  5. Step 5: Solve for x
    x = 85,291,252.26/8,511.90
  6. Step 6: Final answer
    x = 10,020.24

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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.