Home / 8,213.47-12,321.45-3,018.94

Finding the Fourth Proportional to 8,213.47, 12,321.45 and 3,018.94

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Solution

The fourth proportional to 8,213.47, 12,321.45 and 3,018.94 is: 4,528.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.47 : 12,321.45 = 3,018.94 : x
  2. Step 2: Convert to fraction form
    8,213.47/12,321.45 = 3,018.94/x
  3. Step 3: Cross multiply
    8,213.47x = 12,321.45 × 3,018.94
  4. Step 4: Simplify right side
    8,213.47x = 37,197,687.46
  5. Step 5: Solve for x
    x = 37,197,687.46/8,213.47
  6. Step 6: Final answer
    x = 4,528.87

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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.