Home / 13,381.53-20,072.30-5,586.09

Finding the Fourth Proportional to 13,381.53, 20,072.30 and 5,586.09

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Solution

The fourth proportional to 13,381.53, 20,072.30 and 5,586.09 is: 8,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.53 : 20,072.30 = 5,586.09 : x
  2. Step 2: Convert to fraction form
    13,381.53/20,072.30 = 5,586.09/x
  3. Step 3: Cross multiply
    13,381.53x = 20,072.30 × 5,586.09
  4. Step 4: Simplify right side
    13,381.53x = 112,125,646.38
  5. Step 5: Solve for x
    x = 112,125,646.38/13,381.53
  6. Step 6: Final answer
    x = 8,379.14

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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.