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Finding the Fourth Proportional to 8,493, 12,679.77 and 7,260.84

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Solution

The fourth proportional to 8,493, 12,679.77 and 7,260.84 is: 10,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493 : 12,679.77 = 7,260.84 : x
  2. Step 2: Convert to fraction form
    8,493/12,679.77 = 7,260.84/x
  3. Step 3: Cross multiply
    8,493x = 12,679.77 × 7,260.84
  4. Step 4: Simplify right side
    8,493x = 92,065,781.21
  5. Step 5: Solve for x
    x = 92,065,781.21/8,493
  6. Step 6: Final answer
    x = 10,840.20

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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.