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Finding the Fourth Proportional to 8,203.60, 12,241.38 and 7,320.01

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Solution

The fourth proportional to 8,203.60, 12,241.38 and 7,320.01 is: 10,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,203.60 : 12,241.38 = 7,320.01 : x
  2. Step 2: Convert to fraction form
    8,203.60/12,241.38 = 7,320.01/x
  3. Step 3: Cross multiply
    8,203.60x = 12,241.38 × 7,320.01
  4. Step 4: Simplify right side
    8,203.60x = 89,607,055.41
  5. Step 5: Solve for x
    x = 89,607,055.41/8,203.60
  6. Step 6: Final answer
    x = 10,922.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.