Home / 8,145.72-12,218.58-2,302.29

Finding the Fourth Proportional to 8,145.72, 12,218.58 and 2,302.29

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Solution

The fourth proportional to 8,145.72, 12,218.58 and 2,302.29 is: 3,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.72 : 12,218.58 = 2,302.29 : x
  2. Step 2: Convert to fraction form
    8,145.72/12,218.58 = 2,302.29/x
  3. Step 3: Cross multiply
    8,145.72x = 12,218.58 × 2,302.29
  4. Step 4: Simplify right side
    8,145.72x = 28,130,714.55
  5. Step 5: Solve for x
    x = 28,130,714.55/8,145.72
  6. Step 6: Final answer
    x = 3,453.44

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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.