Home / 8,688.34-13,033.11-3,494.21

Finding the Fourth Proportional to 8,688.34, 13,033.11 and 3,494.21

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Solution

The fourth proportional to 8,688.34, 13,033.11 and 3,494.21 is: 5,241.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.34 : 13,033.11 = 3,494.21 : x
  2. Step 2: Convert to fraction form
    8,688.34/13,033.11 = 3,494.21/x
  3. Step 3: Cross multiply
    8,688.34x = 13,033.11 × 3,494.21
  4. Step 4: Simplify right side
    8,688.34x = 45,540,423.29
  5. Step 5: Solve for x
    x = 45,540,423.29/8,688.34
  6. Step 6: Final answer
    x = 5,241.56

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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.