Home / 10,538.10-15,808.21-3,422.04

Finding the Fourth Proportional to 10,538.10, 15,808.21 and 3,422.04

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Solution

The fourth proportional to 10,538.10, 15,808.21 and 3,422.04 is: 5,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.10 : 15,808.21 = 3,422.04 : x
  2. Step 2: Convert to fraction form
    10,538.10/15,808.21 = 3,422.04/x
  3. Step 3: Cross multiply
    10,538.10x = 15,808.21 × 3,422.04
  4. Step 4: Simplify right side
    10,538.10x = 54,096,315.74
  5. Step 5: Solve for x
    x = 54,096,315.74/10,538.10
  6. Step 6: Final answer
    x = 5,133.40

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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.