Home / 13,650.71-18,837.68-7,682.45

Finding the Fourth Proportional to 13,650.71, 18,837.68 and 7,682.45

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Solution

The fourth proportional to 13,650.71, 18,837.68 and 7,682.45 is: 10,601.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.71 : 18,837.68 = 7,682.45 : x
  2. Step 2: Convert to fraction form
    13,650.71/18,837.68 = 7,682.45/x
  3. Step 3: Cross multiply
    13,650.71x = 18,837.68 × 7,682.45
  4. Step 4: Simplify right side
    13,650.71x = 144,719,402.12
  5. Step 5: Solve for x
    x = 144,719,402.12/13,650.71
  6. Step 6: Final answer
    x = 10,601.61

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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.