Home / 13,596.32-20,381.40-7,436

Finding the Fourth Proportional to 13,596.32, 20,381.40 and 7,436

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Solution

The fourth proportional to 13,596.32, 20,381.40 and 7,436 is: 11,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.32 : 20,381.40 = 7,436 : x
  2. Step 2: Convert to fraction form
    13,596.32/20,381.40 = 7,436/x
  3. Step 3: Cross multiply
    13,596.32x = 20,381.40 × 7,436
  4. Step 4: Simplify right side
    13,596.32x = 151,556,090.40
  5. Step 5: Solve for x
    x = 151,556,090.40/13,596.32
  6. Step 6: Final answer
    x = 11,146.85

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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.