Home / 8,194.16-12,280.25-7,669.28

Finding the Fourth Proportional to 8,194.16, 12,280.25 and 7,669.28

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Solution

The fourth proportional to 8,194.16, 12,280.25 and 7,669.28 is: 11,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,194.16 : 12,280.25 = 7,669.28 : x
  2. Step 2: Convert to fraction form
    8,194.16/12,280.25 = 7,669.28/x
  3. Step 3: Cross multiply
    8,194.16x = 12,280.25 × 7,669.28
  4. Step 4: Simplify right side
    8,194.16x = 94,180,633.49
  5. Step 5: Solve for x
    x = 94,180,633.49/8,194.16
  6. Step 6: Final answer
    x = 11,493.64

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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.