Home / 10,516.77-15,765.39-3,947.31

Finding the Fourth Proportional to 10,516.77, 15,765.39 and 3,947.31

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Solution

The fourth proportional to 10,516.77, 15,765.39 and 3,947.31 is: 5,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.77 : 15,765.39 = 3,947.31 : x
  2. Step 2: Convert to fraction form
    10,516.77/15,765.39 = 3,947.31/x
  3. Step 3: Cross multiply
    10,516.77x = 15,765.39 × 3,947.31
  4. Step 4: Simplify right side
    10,516.77x = 62,230,881.60
  5. Step 5: Solve for x
    x = 62,230,881.60/10,516.77
  6. Step 6: Final answer
    x = 5,917.30

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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.