Home / 13,962.24-20,921.22-8,408.34

Finding the Fourth Proportional to 13,962.24, 20,921.22 and 8,408.34

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Solution

The fourth proportional to 13,962.24, 20,921.22 and 8,408.34 is: 12,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.24 : 20,921.22 = 8,408.34 : x
  2. Step 2: Convert to fraction form
    13,962.24/20,921.22 = 8,408.34/x
  3. Step 3: Cross multiply
    13,962.24x = 20,921.22 × 8,408.34
  4. Step 4: Simplify right side
    13,962.24x = 175,912,730.97
  5. Step 5: Solve for x
    x = 175,912,730.97/13,962.24
  6. Step 6: Final answer
    x = 12,599.18

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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.