Home / 18,682.13-25,790.75-12,317.96

Finding the Fourth Proportional to 18,682.13, 25,790.75 and 12,317.96

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Solution

The fourth proportional to 18,682.13, 25,790.75 and 12,317.96 is: 17,004.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.13 : 25,790.75 = 12,317.96 : x
  2. Step 2: Convert to fraction form
    18,682.13/25,790.75 = 12,317.96/x
  3. Step 3: Cross multiply
    18,682.13x = 25,790.75 × 12,317.96
  4. Step 4: Simplify right side
    18,682.13x = 317,689,426.87
  5. Step 5: Solve for x
    x = 317,689,426.87/18,682.13
  6. Step 6: Final answer
    x = 17,004.99

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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.