Home / 10,405.11-15,600.36-3,830.45

Finding the Fourth Proportional to 10,405.11, 15,600.36 and 3,830.45

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Solution

The fourth proportional to 10,405.11, 15,600.36 and 3,830.45 is: 5,742.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.11 : 15,600.36 = 3,830.45 : x
  2. Step 2: Convert to fraction form
    10,405.11/15,600.36 = 3,830.45/x
  3. Step 3: Cross multiply
    10,405.11x = 15,600.36 × 3,830.45
  4. Step 4: Simplify right side
    10,405.11x = 59,756,398.96
  5. Step 5: Solve for x
    x = 59,756,398.96/10,405.11
  6. Step 6: Final answer
    x = 5,742.99

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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.