Home / 13,677.32-20,516.98-4,912.30

Finding the Fourth Proportional to 13,677.32, 20,516.98 and 4,912.30

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Solution

The fourth proportional to 13,677.32, 20,516.98 and 4,912.30 is: 7,368.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.32 : 20,516.98 = 4,912.30 : x
  2. Step 2: Convert to fraction form
    13,677.32/20,516.98 = 4,912.30/x
  3. Step 3: Cross multiply
    13,677.32x = 20,516.98 × 4,912.30
  4. Step 4: Simplify right side
    13,677.32x = 100,785,560.85
  5. Step 5: Solve for x
    x = 100,785,560.85/13,677.32
  6. Step 6: Final answer
    x = 7,368.81

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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.