Home / 12,674.95-18,979.58-8,738.35

Finding the Fourth Proportional to 12,674.95, 18,979.58 and 8,738.35

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Solution

The fourth proportional to 12,674.95, 18,979.58 and 8,738.35 is: 13,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.95 : 18,979.58 = 8,738.35 : x
  2. Step 2: Convert to fraction form
    12,674.95/18,979.58 = 8,738.35/x
  3. Step 3: Cross multiply
    12,674.95x = 18,979.58 × 8,738.35
  4. Step 4: Simplify right side
    12,674.95x = 165,850,187.29
  5. Step 5: Solve for x
    x = 165,850,187.29/12,674.95
  6. Step 6: Final answer
    x = 13,084.88

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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.