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Finding the Fourth Proportional to 8,950.35, 13,420.95 and 3,399.47

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Solution

The fourth proportional to 8,950.35, 13,420.95 and 3,399.47 is: 5,097.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.35 : 13,420.95 = 3,399.47 : x
  2. Step 2: Convert to fraction form
    8,950.35/13,420.95 = 3,399.47/x
  3. Step 3: Cross multiply
    8,950.35x = 13,420.95 × 3,399.47
  4. Step 4: Simplify right side
    8,950.35x = 45,624,116.90
  5. Step 5: Solve for x
    x = 45,624,116.90/8,950.35
  6. Step 6: Final answer
    x = 5,097.47

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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.