Home / 14,043.28-19,376.22-8,076.64

Finding the Fourth Proportional to 14,043.28, 19,376.22 and 8,076.64

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Solution

The fourth proportional to 14,043.28, 19,376.22 and 8,076.64 is: 11,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.28 : 19,376.22 = 8,076.64 : x
  2. Step 2: Convert to fraction form
    14,043.28/19,376.22 = 8,076.64/x
  3. Step 3: Cross multiply
    14,043.28x = 19,376.22 × 8,076.64
  4. Step 4: Simplify right side
    14,043.28x = 156,494,753.50
  5. Step 5: Solve for x
    x = 156,494,753.50/14,043.28
  6. Step 6: Final answer
    x = 11,143.75

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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.