Home / 8,529.25-11,766.57-4,990.90

Finding the Fourth Proportional to 8,529.25, 11,766.57 and 4,990.90

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Solution

The fourth proportional to 8,529.25, 11,766.57 and 4,990.90 is: 6,885.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.25 : 11,766.57 = 4,990.90 : x
  2. Step 2: Convert to fraction form
    8,529.25/11,766.57 = 4,990.90/x
  3. Step 3: Cross multiply
    8,529.25x = 11,766.57 × 4,990.90
  4. Step 4: Simplify right side
    8,529.25x = 58,725,774.21
  5. Step 5: Solve for x
    x = 58,725,774.21/8,529.25
  6. Step 6: Final answer
    x = 6,885.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.