Home / 10,629.47-15,930.32-4,382.34

Finding the Fourth Proportional to 10,629.47, 15,930.32 and 4,382.34

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Solution

The fourth proportional to 10,629.47, 15,930.32 and 4,382.34 is: 6,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.47 : 15,930.32 = 4,382.34 : x
  2. Step 2: Convert to fraction form
    10,629.47/15,930.32 = 4,382.34/x
  3. Step 3: Cross multiply
    10,629.47x = 15,930.32 × 4,382.34
  4. Step 4: Simplify right side
    10,629.47x = 69,812,056.64
  5. Step 5: Solve for x
    x = 69,812,056.64/10,629.47
  6. Step 6: Final answer
    x = 6,567.79

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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.