Home / 14,816.94-20,447.02-8,102.72

Finding the Fourth Proportional to 14,816.94, 20,447.02 and 8,102.72

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Solution

The fourth proportional to 14,816.94, 20,447.02 and 8,102.72 is: 11,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,816.94 : 20,447.02 = 8,102.72 : x
  2. Step 2: Convert to fraction form
    14,816.94/20,447.02 = 8,102.72/x
  3. Step 3: Cross multiply
    14,816.94x = 20,447.02 × 8,102.72
  4. Step 4: Simplify right side
    14,816.94x = 165,676,477.89
  5. Step 5: Solve for x
    x = 165,676,477.89/14,816.94
  6. Step 6: Final answer
    x = 11,181.56

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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.