Home / 18,829.75-25,985.07-10,447.87

Finding the Fourth Proportional to 18,829.75, 25,985.07 and 10,447.87

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Solution

The fourth proportional to 18,829.75, 25,985.07 and 10,447.87 is: 14,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.75 : 25,985.07 = 10,447.87 : x
  2. Step 2: Convert to fraction form
    18,829.75/25,985.07 = 10,447.87/x
  3. Step 3: Cross multiply
    18,829.75x = 25,985.07 × 10,447.87
  4. Step 4: Simplify right side
    18,829.75x = 271,488,633.30
  5. Step 5: Solve for x
    x = 271,488,633.30/18,829.75
  6. Step 6: Final answer
    x = 14,418.07

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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.