Home / 13,649.03-18,834.13-7,682.75

Finding the Fourth Proportional to 13,649.03, 18,834.13 and 7,682.75

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Solution

The fourth proportional to 13,649.03, 18,834.13 and 7,682.75 is: 10,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.03 : 18,834.13 = 7,682.75 : x
  2. Step 2: Convert to fraction form
    13,649.03/18,834.13 = 7,682.75/x
  3. Step 3: Cross multiply
    13,649.03x = 18,834.13 × 7,682.75
  4. Step 4: Simplify right side
    13,649.03x = 144,697,912.26
  5. Step 5: Solve for x
    x = 144,697,912.26/13,649.03
  6. Step 6: Final answer
    x = 10,601.33

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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.