Home / 14,662.96-20,215.28-12,135.76

Finding the Fourth Proportional to 14,662.96, 20,215.28 and 12,135.76

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Solution

The fourth proportional to 14,662.96, 20,215.28 and 12,135.76 is: 16,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.96 : 20,215.28 = 12,135.76 : x
  2. Step 2: Convert to fraction form
    14,662.96/20,215.28 = 12,135.76/x
  3. Step 3: Cross multiply
    14,662.96x = 20,215.28 × 12,135.76
  4. Step 4: Simplify right side
    14,662.96x = 245,327,786.41
  5. Step 5: Solve for x
    x = 245,327,786.41/14,662.96
  6. Step 6: Final answer
    x = 16,731.12

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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.