Home / 8,845.50-12,220.20-6,603.49

Finding the Fourth Proportional to 8,845.50, 12,220.20 and 6,603.49

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Solution

The fourth proportional to 8,845.50, 12,220.20 and 6,603.49 is: 9,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.50 : 12,220.20 = 6,603.49 : x
  2. Step 2: Convert to fraction form
    8,845.50/12,220.20 = 6,603.49/x
  3. Step 3: Cross multiply
    8,845.50x = 12,220.20 × 6,603.49
  4. Step 4: Simplify right side
    8,845.50x = 80,695,960.08
  5. Step 5: Solve for x
    x = 80,695,960.08/8,845.50
  6. Step 6: Final answer
    x = 9,122.82

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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.