Home / 8,699.90-13,048.63-2,855.75

Finding the Fourth Proportional to 8,699.90, 13,048.63 and 2,855.75

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Solution

The fourth proportional to 8,699.90, 13,048.63 and 2,855.75 is: 4,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.90 : 13,048.63 = 2,855.75 : x
  2. Step 2: Convert to fraction form
    8,699.90/13,048.63 = 2,855.75/x
  3. Step 3: Cross multiply
    8,699.90x = 13,048.63 × 2,855.75
  4. Step 4: Simplify right side
    8,699.90x = 37,263,625.12
  5. Step 5: Solve for x
    x = 37,263,625.12/8,699.90
  6. Step 6: Final answer
    x = 4,283.22

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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.