Home / 10,538.46-15,816.56-5,271.89

Finding the Fourth Proportional to 10,538.46, 15,816.56 and 5,271.89

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Solution

The fourth proportional to 10,538.46, 15,816.56 and 5,271.89 is: 7,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.46 : 15,816.56 = 5,271.89 : x
  2. Step 2: Convert to fraction form
    10,538.46/15,816.56 = 5,271.89/x
  3. Step 3: Cross multiply
    10,538.46x = 15,816.56 × 5,271.89
  4. Step 4: Simplify right side
    10,538.46x = 83,383,164.50
  5. Step 5: Solve for x
    x = 83,383,164.50/10,538.46
  6. Step 6: Final answer
    x = 7,912.27

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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.