Home / 10,156.44-15,235.89-3,581.28

Finding the Fourth Proportional to 10,156.44, 15,235.89 and 3,581.28

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Solution

The fourth proportional to 10,156.44, 15,235.89 and 3,581.28 is: 5,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.44 : 15,235.89 = 3,581.28 : x
  2. Step 2: Convert to fraction form
    10,156.44/15,235.89 = 3,581.28/x
  3. Step 3: Cross multiply
    10,156.44x = 15,235.89 × 3,581.28
  4. Step 4: Simplify right side
    10,156.44x = 54,563,988.14
  5. Step 5: Solve for x
    x = 54,563,988.14/10,156.44
  6. Step 6: Final answer
    x = 5,372.35

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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.