Home / 8,426.70-12,636.41-6,480.27

Finding the Fourth Proportional to 8,426.70, 12,636.41 and 6,480.27

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Solution

The fourth proportional to 8,426.70, 12,636.41 and 6,480.27 is: 9,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.70 : 12,636.41 = 6,480.27 : x
  2. Step 2: Convert to fraction form
    8,426.70/12,636.41 = 6,480.27/x
  3. Step 3: Cross multiply
    8,426.70x = 12,636.41 × 6,480.27
  4. Step 4: Simplify right side
    8,426.70x = 81,887,316.23
  5. Step 5: Solve for x
    x = 81,887,316.23/8,426.70
  6. Step 6: Final answer
    x = 9,717.60

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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.