Home / 14,646.15-20,197.31-13,431.96

Finding the Fourth Proportional to 14,646.15, 20,197.31 and 13,431.96

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Solution

The fourth proportional to 14,646.15, 20,197.31 and 13,431.96 is: 18,522.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,646.15 : 20,197.31 = 13,431.96 : x
  2. Step 2: Convert to fraction form
    14,646.15/20,197.31 = 13,431.96/x
  3. Step 3: Cross multiply
    14,646.15x = 20,197.31 × 13,431.96
  4. Step 4: Simplify right side
    14,646.15x = 271,289,392.87
  5. Step 5: Solve for x
    x = 271,289,392.87/14,646.15
  6. Step 6: Final answer
    x = 18,522.92

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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.