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Finding the Fourth Proportional to 8,403.50, 12,605.25 and 2,480.46

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Solution

The fourth proportional to 8,403.50, 12,605.25 and 2,480.46 is: 3,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.50 : 12,605.25 = 2,480.46 : x
  2. Step 2: Convert to fraction form
    8,403.50/12,605.25 = 2,480.46/x
  3. Step 3: Cross multiply
    8,403.50x = 12,605.25 × 2,480.46
  4. Step 4: Simplify right side
    8,403.50x = 31,266,865.87
  5. Step 5: Solve for x
    x = 31,266,865.87/8,403.50
  6. Step 6: Final answer
    x = 3,720.70

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Half scale
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Double scale
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Similar ratio
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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.