Home / 8,687.13-13,048.16-5,183.98

Finding the Fourth Proportional to 8,687.13, 13,048.16 and 5,183.98

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Solution

The fourth proportional to 8,687.13, 13,048.16 and 5,183.98 is: 7,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.13 : 13,048.16 = 5,183.98 : x
  2. Step 2: Convert to fraction form
    8,687.13/13,048.16 = 5,183.98/x
  3. Step 3: Cross multiply
    8,687.13x = 13,048.16 × 5,183.98
  4. Step 4: Simplify right side
    8,687.13x = 67,641,309.32
  5. Step 5: Solve for x
    x = 67,641,309.32/8,687.13
  6. Step 6: Final answer
    x = 7,786.38

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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.