Home / 8,298.47-12,447.81-2,455.20

Finding the Fourth Proportional to 8,298.47, 12,447.81 and 2,455.20

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Solution

The fourth proportional to 8,298.47, 12,447.81 and 2,455.20 is: 3,682.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.47 : 12,447.81 = 2,455.20 : x
  2. Step 2: Convert to fraction form
    8,298.47/12,447.81 = 2,455.20/x
  3. Step 3: Cross multiply
    8,298.47x = 12,447.81 × 2,455.20
  4. Step 4: Simplify right side
    8,298.47x = 30,561,863.11
  5. Step 5: Solve for x
    x = 30,561,863.11/8,298.47
  6. Step 6: Final answer
    x = 3,682.83

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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.