Home / 8,896.39-12,279.37-5,120.02

Finding the Fourth Proportional to 8,896.39, 12,279.37 and 5,120.02

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Solution

The fourth proportional to 8,896.39, 12,279.37 and 5,120.02 is: 7,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.39 : 12,279.37 = 5,120.02 : x
  2. Step 2: Convert to fraction form
    8,896.39/12,279.37 = 5,120.02/x
  3. Step 3: Cross multiply
    8,896.39x = 12,279.37 × 5,120.02
  4. Step 4: Simplify right side
    8,896.39x = 62,870,619.99
  5. Step 5: Solve for x
    x = 62,870,619.99/8,896.39
  6. Step 6: Final answer
    x = 7,066.98

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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.