Home / 13,677.85-20,516.76-4,318.59

Finding the Fourth Proportional to 13,677.85, 20,516.76 and 4,318.59

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Solution

The fourth proportional to 13,677.85, 20,516.76 and 4,318.59 is: 6,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.85 : 20,516.76 = 4,318.59 : x
  2. Step 2: Convert to fraction form
    13,677.85/20,516.76 = 4,318.59/x
  3. Step 3: Cross multiply
    13,677.85x = 20,516.76 × 4,318.59
  4. Step 4: Simplify right side
    13,677.85x = 88,603,474.57
  5. Step 5: Solve for x
    x = 88,603,474.57/13,677.85
  6. Step 6: Final answer
    x = 6,477.88

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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.