Home / 10,439.66-15,657.37-3,419.89

Finding the Fourth Proportional to 10,439.66, 15,657.37 and 3,419.89

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Solution

The fourth proportional to 10,439.66, 15,657.37 and 3,419.89 is: 5,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.66 : 15,657.37 = 3,419.89 : x
  2. Step 2: Convert to fraction form
    10,439.66/15,657.37 = 3,419.89/x
  3. Step 3: Cross multiply
    10,439.66x = 15,657.37 × 3,419.89
  4. Step 4: Simplify right side
    10,439.66x = 53,546,435.40
  5. Step 5: Solve for x
    x = 53,546,435.40/10,439.66
  6. Step 6: Final answer
    x = 5,129.13

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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.