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Finding the Fourth Proportional to 8,969.81, 13,454.18 and 3,346.39

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Solution

The fourth proportional to 8,969.81, 13,454.18 and 3,346.39 is: 5,019.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.81 : 13,454.18 = 3,346.39 : x
  2. Step 2: Convert to fraction form
    8,969.81/13,454.18 = 3,346.39/x
  3. Step 3: Cross multiply
    8,969.81x = 13,454.18 × 3,346.39
  4. Step 4: Simplify right side
    8,969.81x = 45,022,898.79
  5. Step 5: Solve for x
    x = 45,022,898.79/8,969.81
  6. Step 6: Final answer
    x = 5,019.38

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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.