Home / 8,099.40-12,134.70-6,630.60

Finding the Fourth Proportional to 8,099.40, 12,134.70 and 6,630.60

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Solution

The fourth proportional to 8,099.40, 12,134.70 and 6,630.60 is: 9,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.40 : 12,134.70 = 6,630.60 : x
  2. Step 2: Convert to fraction form
    8,099.40/12,134.70 = 6,630.60/x
  3. Step 3: Cross multiply
    8,099.40x = 12,134.70 × 6,630.60
  4. Step 4: Simplify right side
    8,099.40x = 80,460,341.82
  5. Step 5: Solve for x
    x = 80,460,341.82/8,099.40
  6. Step 6: Final answer
    x = 9,934.11

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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.