Home / 18,647.40-25,732.64-10,684.12

Finding the Fourth Proportional to 18,647.40, 25,732.64 and 10,684.12

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Solution

The fourth proportional to 18,647.40, 25,732.64 and 10,684.12 is: 14,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.40 : 25,732.64 = 10,684.12 : x
  2. Step 2: Convert to fraction form
    18,647.40/25,732.64 = 10,684.12/x
  3. Step 3: Cross multiply
    18,647.40x = 25,732.64 × 10,684.12
  4. Step 4: Simplify right side
    18,647.40x = 274,930,613.68
  5. Step 5: Solve for x
    x = 274,930,613.68/18,647.40
  6. Step 6: Final answer
    x = 14,743.64

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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.