Home / 8,688.37-13,027.87-4,687.90

Finding the Fourth Proportional to 8,688.37, 13,027.87 and 4,687.90

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Solution

The fourth proportional to 8,688.37, 13,027.87 and 4,687.90 is: 7,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.37 : 13,027.87 = 4,687.90 : x
  2. Step 2: Convert to fraction form
    8,688.37/13,027.87 = 4,687.90/x
  3. Step 3: Cross multiply
    8,688.37x = 13,027.87 × 4,687.90
  4. Step 4: Simplify right side
    8,688.37x = 61,073,278.66
  5. Step 5: Solve for x
    x = 61,073,278.66/8,688.37
  6. Step 6: Final answer
    x = 7,029.31

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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.