Home / 10,530.96-15,789.12-5,333.28

Finding the Fourth Proportional to 10,530.96, 15,789.12 and 5,333.28

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Solution

The fourth proportional to 10,530.96, 15,789.12 and 5,333.28 is: 7,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.96 : 15,789.12 = 5,333.28 : x
  2. Step 2: Convert to fraction form
    10,530.96/15,789.12 = 5,333.28/x
  3. Step 3: Cross multiply
    10,530.96x = 15,789.12 × 5,333.28
  4. Step 4: Simplify right side
    10,530.96x = 84,207,797.91
  5. Step 5: Solve for x
    x = 84,207,797.91/10,530.96
  6. Step 6: Final answer
    x = 7,996.21

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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.