Home / 13,756.86-20,635.38-3,368.61

Finding the Fourth Proportional to 13,756.86, 20,635.38 and 3,368.61

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Solution

The fourth proportional to 13,756.86, 20,635.38 and 3,368.61 is: 5,052.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.86 : 20,635.38 = 3,368.61 : x
  2. Step 2: Convert to fraction form
    13,756.86/20,635.38 = 3,368.61/x
  3. Step 3: Cross multiply
    13,756.86x = 20,635.38 × 3,368.61
  4. Step 4: Simplify right side
    13,756.86x = 69,512,547.42
  5. Step 5: Solve for x
    x = 69,512,547.42/13,756.86
  6. Step 6: Final answer
    x = 5,052.94

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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.