Home / 10,609.12-15,913.68-4,765.28

Finding the Fourth Proportional to 10,609.12, 15,913.68 and 4,765.28

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Solution

The fourth proportional to 10,609.12, 15,913.68 and 4,765.28 is: 7,147.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609.12 : 15,913.68 = 4,765.28 : x
  2. Step 2: Convert to fraction form
    10,609.12/15,913.68 = 4,765.28/x
  3. Step 3: Cross multiply
    10,609.12x = 15,913.68 × 4,765.28
  4. Step 4: Simplify right side
    10,609.12x = 75,833,141.03
  5. Step 5: Solve for x
    x = 75,833,141.03/10,609.12
  6. Step 6: Final answer
    x = 7,147.92

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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.