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Finding the Fourth Proportional to 8,262.47, 12,393.72 and 6,798.55

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Solution

The fourth proportional to 8,262.47, 12,393.72 and 6,798.55 is: 10,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.47 : 12,393.72 = 6,798.55 : x
  2. Step 2: Convert to fraction form
    8,262.47/12,393.72 = 6,798.55/x
  3. Step 3: Cross multiply
    8,262.47x = 12,393.72 × 6,798.55
  4. Step 4: Simplify right side
    8,262.47x = 84,259,325.11
  5. Step 5: Solve for x
    x = 84,259,325.11/8,262.47
  6. Step 6: Final answer
    x = 10,197.84

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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.