Home / 8,489.17-12,717.21-5,558.59

Finding the Fourth Proportional to 8,489.17, 12,717.21 and 5,558.59

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Solution

The fourth proportional to 8,489.17, 12,717.21 and 5,558.59 is: 8,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.17 : 12,717.21 = 5,558.59 : x
  2. Step 2: Convert to fraction form
    8,489.17/12,717.21 = 5,558.59/x
  3. Step 3: Cross multiply
    8,489.17x = 12,717.21 × 5,558.59
  4. Step 4: Simplify right side
    8,489.17x = 70,689,756.33
  5. Step 5: Solve for x
    x = 70,689,756.33/8,489.17
  6. Step 6: Final answer
    x = 8,327.05

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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.