Home / 13,376.27-20,066.85-4,490.69

Finding the Fourth Proportional to 13,376.27, 20,066.85 and 4,490.69

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Solution

The fourth proportional to 13,376.27, 20,066.85 and 4,490.69 is: 6,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.27 : 20,066.85 = 4,490.69 : x
  2. Step 2: Convert to fraction form
    13,376.27/20,066.85 = 4,490.69/x
  3. Step 3: Cross multiply
    13,376.27x = 20,066.85 × 4,490.69
  4. Step 4: Simplify right side
    13,376.27x = 90,114,002.63
  5. Step 5: Solve for x
    x = 90,114,002.63/13,376.27
  6. Step 6: Final answer
    x = 6,736.86

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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.