Home / 13,971.86-20,960.39-4,612.53

Finding the Fourth Proportional to 13,971.86, 20,960.39 and 4,612.53

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Solution

The fourth proportional to 13,971.86, 20,960.39 and 4,612.53 is: 6,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.86 : 20,960.39 = 4,612.53 : x
  2. Step 2: Convert to fraction form
    13,971.86/20,960.39 = 4,612.53/x
  3. Step 3: Cross multiply
    13,971.86x = 20,960.39 × 4,612.53
  4. Step 4: Simplify right side
    13,971.86x = 96,680,427.69
  5. Step 5: Solve for x
    x = 96,680,427.69/13,971.86
  6. Step 6: Final answer
    x = 6,919.65

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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.