Home / 13,677.29-20,516.11-4,912.21

Finding the Fourth Proportional to 13,677.29, 20,516.11 and 4,912.21

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Solution

The fourth proportional to 13,677.29, 20,516.11 and 4,912.21 is: 7,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.29 : 20,516.11 = 4,912.21 : x
  2. Step 2: Convert to fraction form
    13,677.29/20,516.11 = 4,912.21/x
  3. Step 3: Cross multiply
    13,677.29x = 20,516.11 × 4,912.21
  4. Step 4: Simplify right side
    13,677.29x = 100,779,381.33
  5. Step 5: Solve for x
    x = 100,779,381.33/13,677.29
  6. Step 6: Final answer
    x = 7,368.37

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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.