Home / 8,120.80-11,206.16-4,536.10

Finding the Fourth Proportional to 8,120.80, 11,206.16 and 4,536.10

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Solution

The fourth proportional to 8,120.80, 11,206.16 and 4,536.10 is: 6,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.80 : 11,206.16 = 4,536.10 : x
  2. Step 2: Convert to fraction form
    8,120.80/11,206.16 = 4,536.10/x
  3. Step 3: Cross multiply
    8,120.80x = 11,206.16 × 4,536.10
  4. Step 4: Simplify right side
    8,120.80x = 50,832,262.38
  5. Step 5: Solve for x
    x = 50,832,262.38/8,120.80
  6. Step 6: Final answer
    x = 6,259.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.