Home / 18,579.59-25,639.65-10,081.70

Finding the Fourth Proportional to 18,579.59, 25,639.65 and 10,081.70

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Solution

The fourth proportional to 18,579.59, 25,639.65 and 10,081.70 is: 13,912.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.59 : 25,639.65 = 10,081.70 : x
  2. Step 2: Convert to fraction form
    18,579.59/25,639.65 = 10,081.70/x
  3. Step 3: Cross multiply
    18,579.59x = 25,639.65 × 10,081.70
  4. Step 4: Simplify right side
    18,579.59x = 258,491,131.21
  5. Step 5: Solve for x
    x = 258,491,131.21/18,579.59
  6. Step 6: Final answer
    x = 13,912.64

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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.