Home / 8,756.31-13,128.66-4,591.29

Finding the Fourth Proportional to 8,756.31, 13,128.66 and 4,591.29

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Solution

The fourth proportional to 8,756.31, 13,128.66 and 4,591.29 is: 6,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.31 : 13,128.66 = 4,591.29 : x
  2. Step 2: Convert to fraction form
    8,756.31/13,128.66 = 4,591.29/x
  3. Step 3: Cross multiply
    8,756.31x = 13,128.66 × 4,591.29
  4. Step 4: Simplify right side
    8,756.31x = 60,277,485.37
  5. Step 5: Solve for x
    x = 60,277,485.37/8,756.31
  6. Step 6: Final answer
    x = 6,883.89

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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.