Home / 13,375.13-20,062.28-5,475.40

Finding the Fourth Proportional to 13,375.13, 20,062.28 and 5,475.40

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Solution

The fourth proportional to 13,375.13, 20,062.28 and 5,475.40 is: 8,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.13 : 20,062.28 = 5,475.40 : x
  2. Step 2: Convert to fraction form
    13,375.13/20,062.28 = 5,475.40/x
  3. Step 3: Cross multiply
    13,375.13x = 20,062.28 × 5,475.40
  4. Step 4: Simplify right side
    13,375.13x = 109,848,971.44
  5. Step 5: Solve for x
    x = 109,848,971.44/13,375.13
  6. Step 6: Final answer
    x = 8,212.93

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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.