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Finding the Fourth Proportional to 8,305.95, 12,460.28 and 2,758.13

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Solution

The fourth proportional to 8,305.95, 12,460.28 and 2,758.13 is: 4,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.95 : 12,460.28 = 2,758.13 : x
  2. Step 2: Convert to fraction form
    8,305.95/12,460.28 = 2,758.13/x
  3. Step 3: Cross multiply
    8,305.95x = 12,460.28 × 2,758.13
  4. Step 4: Simplify right side
    8,305.95x = 34,366,995.98
  5. Step 5: Solve for x
    x = 34,366,995.98/8,305.95
  6. Step 6: Final answer
    x = 4,137.64

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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.