Home / 14,020.66-19,336.32-12,131.64

Finding the Fourth Proportional to 14,020.66, 19,336.32 and 12,131.64

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Solution

The fourth proportional to 14,020.66, 19,336.32 and 12,131.64 is: 16,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.66 : 19,336.32 = 12,131.64 : x
  2. Step 2: Convert to fraction form
    14,020.66/19,336.32 = 12,131.64/x
  3. Step 3: Cross multiply
    14,020.66x = 19,336.32 × 12,131.64
  4. Step 4: Simplify right side
    14,020.66x = 234,581,273.16
  5. Step 5: Solve for x
    x = 234,581,273.16/14,020.66
  6. Step 6: Final answer
    x = 16,731.11

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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.