Home / 8,426.17-12,650.19-6,479.74

Finding the Fourth Proportional to 8,426.17, 12,650.19 and 6,479.74

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Solution

The fourth proportional to 8,426.17, 12,650.19 and 6,479.74 is: 9,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.17 : 12,650.19 = 6,479.74 : x
  2. Step 2: Convert to fraction form
    8,426.17/12,650.19 = 6,479.74/x
  3. Step 3: Cross multiply
    8,426.17x = 12,650.19 × 6,479.74
  4. Step 4: Simplify right side
    8,426.17x = 81,969,846.50
  5. Step 5: Solve for x
    x = 81,969,846.50/8,426.17
  6. Step 6: Final answer
    x = 9,728.01

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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.