Home / 12,376.70-18,569.30-3,612.90

Finding the Fourth Proportional to 12,376.70, 18,569.30 and 3,612.90

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Solution

The fourth proportional to 12,376.70, 18,569.30 and 3,612.90 is: 5,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.70 : 18,569.30 = 3,612.90 : x
  2. Step 2: Convert to fraction form
    12,376.70/18,569.30 = 3,612.90/x
  3. Step 3: Cross multiply
    12,376.70x = 18,569.30 × 3,612.90
  4. Step 4: Simplify right side
    12,376.70x = 67,089,023.97
  5. Step 5: Solve for x
    x = 67,089,023.97/12,376.70
  6. Step 6: Final answer
    x = 5,420.59

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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.