Home / 8,682.81-13,021.53-3,135.44

Finding the Fourth Proportional to 8,682.81, 13,021.53 and 3,135.44

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Solution

The fourth proportional to 8,682.81, 13,021.53 and 3,135.44 is: 4,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.81 : 13,021.53 = 3,135.44 : x
  2. Step 2: Convert to fraction form
    8,682.81/13,021.53 = 3,135.44/x
  3. Step 3: Cross multiply
    8,682.81x = 13,021.53 × 3,135.44
  4. Step 4: Simplify right side
    8,682.81x = 40,828,226.02
  5. Step 5: Solve for x
    x = 40,828,226.02/8,682.81
  6. Step 6: Final answer
    x = 4,702.19

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1.5x scale

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.