Home / 14,969.86-20,660.33-12,447.63

Finding the Fourth Proportional to 14,969.86, 20,660.33 and 12,447.63

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Solution

The fourth proportional to 14,969.86, 20,660.33 and 12,447.63 is: 17,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.86 : 20,660.33 = 12,447.63 : x
  2. Step 2: Convert to fraction form
    14,969.86/20,660.33 = 12,447.63/x
  3. Step 3: Cross multiply
    14,969.86x = 20,660.33 × 12,447.63
  4. Step 4: Simplify right side
    14,969.86x = 257,172,081.28
  5. Step 5: Solve for x
    x = 257,172,081.28/14,969.86
  6. Step 6: Final answer
    x = 17,179.33

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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.