Home / 18,245.43-25,187.18-10,690.71

Finding the Fourth Proportional to 18,245.43, 25,187.18 and 10,690.71

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Solution

The fourth proportional to 18,245.43, 25,187.18 and 10,690.71 is: 14,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.43 : 25,187.18 = 10,690.71 : x
  2. Step 2: Convert to fraction form
    18,245.43/25,187.18 = 10,690.71/x
  3. Step 3: Cross multiply
    18,245.43x = 25,187.18 × 10,690.71
  4. Step 4: Simplify right side
    18,245.43x = 269,268,689.19
  5. Step 5: Solve for x
    x = 269,268,689.19/18,245.43
  6. Step 6: Final answer
    x = 14,758.14

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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.