Home / 13,396.18-20,103.48-4,631.12

Finding the Fourth Proportional to 13,396.18, 20,103.48 and 4,631.12

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Solution

The fourth proportional to 13,396.18, 20,103.48 and 4,631.12 is: 6,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.18 : 20,103.48 = 4,631.12 : x
  2. Step 2: Convert to fraction form
    13,396.18/20,103.48 = 4,631.12/x
  3. Step 3: Cross multiply
    13,396.18x = 20,103.48 × 4,631.12
  4. Step 4: Simplify right side
    13,396.18x = 93,101,628.30
  5. Step 5: Solve for x
    x = 93,101,628.30/13,396.18
  6. Step 6: Final answer
    x = 6,949.86

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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.