Home / 8,305.51-12,458.78-2,759.34

Finding the Fourth Proportional to 8,305.51, 12,458.78 and 2,759.34

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Solution

The fourth proportional to 8,305.51, 12,458.78 and 2,759.34 is: 4,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.51 : 12,458.78 = 2,759.34 : x
  2. Step 2: Convert to fraction form
    8,305.51/12,458.78 = 2,759.34/x
  3. Step 3: Cross multiply
    8,305.51x = 12,458.78 × 2,759.34
  4. Step 4: Simplify right side
    8,305.51x = 34,378,010.01
  5. Step 5: Solve for x
    x = 34,378,010.01/8,305.51
  6. Step 6: Final answer
    x = 4,139.18

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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.