Home / 8,135.53-12,203.30-2,588.90

Finding the Fourth Proportional to 8,135.53, 12,203.30 and 2,588.90

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Solution

The fourth proportional to 8,135.53, 12,203.30 and 2,588.90 is: 3,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.53 : 12,203.30 = 2,588.90 : x
  2. Step 2: Convert to fraction form
    8,135.53/12,203.30 = 2,588.90/x
  3. Step 3: Cross multiply
    8,135.53x = 12,203.30 × 2,588.90
  4. Step 4: Simplify right side
    8,135.53x = 31,593,068.83
  5. Step 5: Solve for x
    x = 31,593,068.83/8,135.53
  6. Step 6: Final answer
    x = 3,883.35

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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.