Home / 10,629.54-15,943.86-4,387.86

Finding the Fourth Proportional to 10,629.54, 15,943.86 and 4,387.86

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Solution

The fourth proportional to 10,629.54, 15,943.86 and 4,387.86 is: 6,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.54 : 15,943.86 = 4,387.86 : x
  2. Step 2: Convert to fraction form
    10,629.54/15,943.86 = 4,387.86/x
  3. Step 3: Cross multiply
    10,629.54x = 15,943.86 × 4,387.86
  4. Step 4: Simplify right side
    10,629.54x = 69,959,425.54
  5. Step 5: Solve for x
    x = 69,959,425.54/10,629.54
  6. Step 6: Final answer
    x = 6,581.60

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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.