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Finding the Fourth Proportional to 8,659.48, 12,998.41 and 7,035.63

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Solution

The fourth proportional to 8,659.48, 12,998.41 and 7,035.63 is: 10,560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.48 : 12,998.41 = 7,035.63 : x
  2. Step 2: Convert to fraction form
    8,659.48/12,998.41 = 7,035.63/x
  3. Step 3: Cross multiply
    8,659.48x = 12,998.41 × 7,035.63
  4. Step 4: Simplify right side
    8,659.48x = 91,452,003.35
  5. Step 5: Solve for x
    x = 91,452,003.35/8,659.48
  6. Step 6: Final answer
    x = 10,560.91

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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.