Home / 8,120.45-12,201.93-7,083.04

Finding the Fourth Proportional to 8,120.45, 12,201.93 and 7,083.04

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Solution

The fourth proportional to 8,120.45, 12,201.93 and 7,083.04 is: 10,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.45 : 12,201.93 = 7,083.04 : x
  2. Step 2: Convert to fraction form
    8,120.45/12,201.93 = 7,083.04/x
  3. Step 3: Cross multiply
    8,120.45x = 12,201.93 × 7,083.04
  4. Step 4: Simplify right side
    8,120.45x = 86,426,758.27
  5. Step 5: Solve for x
    x = 86,426,758.27/8,120.45
  6. Step 6: Final answer
    x = 10,643.10

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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.