Home / 8,197.79-12,293.66-2,931.37

Finding the Fourth Proportional to 8,197.79, 12,293.66 and 2,931.37

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Solution

The fourth proportional to 8,197.79, 12,293.66 and 2,931.37 is: 4,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,197.79 : 12,293.66 = 2,931.37 : x
  2. Step 2: Convert to fraction form
    8,197.79/12,293.66 = 2,931.37/x
  3. Step 3: Cross multiply
    8,197.79x = 12,293.66 × 2,931.37
  4. Step 4: Simplify right side
    8,197.79x = 36,037,252.18
  5. Step 5: Solve for x
    x = 36,037,252.18/8,197.79
  6. Step 6: Final answer
    x = 4,395.97

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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.