Home / 8,955.34-13,438.85-3,408.73

Finding the Fourth Proportional to 8,955.34, 13,438.85 and 3,408.73

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Solution

The fourth proportional to 8,955.34, 13,438.85 and 3,408.73 is: 5,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.34 : 13,438.85 = 3,408.73 : x
  2. Step 2: Convert to fraction form
    8,955.34/13,438.85 = 3,408.73/x
  3. Step 3: Cross multiply
    8,955.34x = 13,438.85 × 3,408.73
  4. Step 4: Simplify right side
    8,955.34x = 45,809,411.16
  5. Step 5: Solve for x
    x = 45,809,411.16/8,955.34
  6. Step 6: Final answer
    x = 5,115.32

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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.