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Finding the Fourth Proportional to 8,273.10, 12,401.55 and 7,398.30

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Solution

The fourth proportional to 8,273.10, 12,401.55 and 7,398.30 is: 11,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,273.10 : 12,401.55 = 7,398.30 : x
  2. Step 2: Convert to fraction form
    8,273.10/12,401.55 = 7,398.30/x
  3. Step 3: Cross multiply
    8,273.10x = 12,401.55 × 7,398.30
  4. Step 4: Simplify right side
    8,273.10x = 91,750,387.37
  5. Step 5: Solve for x
    x = 91,750,387.37/8,273.10
  6. Step 6: Final answer
    x = 11,090.21

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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.