Home / 10,409.88-15,621.30-3,489.24

Finding the Fourth Proportional to 10,409.88, 15,621.30 and 3,489.24

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Solution

The fourth proportional to 10,409.88, 15,621.30 and 3,489.24 is: 5,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.88 : 15,621.30 = 3,489.24 : x
  2. Step 2: Convert to fraction form
    10,409.88/15,621.30 = 3,489.24/x
  3. Step 3: Cross multiply
    10,409.88x = 15,621.30 × 3,489.24
  4. Step 4: Simplify right side
    10,409.88x = 54,506,464.81
  5. Step 5: Solve for x
    x = 54,506,464.81/10,409.88
  6. Step 6: Final answer
    x = 5,236.03

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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.