Home / 13,958.38-20,935.68-4,095.82

Finding the Fourth Proportional to 13,958.38, 20,935.68 and 4,095.82

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Solution

The fourth proportional to 13,958.38, 20,935.68 and 4,095.82 is: 6,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.38 : 20,935.68 = 4,095.82 : x
  2. Step 2: Convert to fraction form
    13,958.38/20,935.68 = 4,095.82/x
  3. Step 3: Cross multiply
    13,958.38x = 20,935.68 × 4,095.82
  4. Step 4: Simplify right side
    13,958.38x = 85,748,776.86
  5. Step 5: Solve for x
    x = 85,748,776.86/13,958.38
  6. Step 6: Final answer
    x = 6,143.18

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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.