Home / 14,803.53-20,428.85-8,517.09

Finding the Fourth Proportional to 14,803.53, 20,428.85 and 8,517.09

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Solution

The fourth proportional to 14,803.53, 20,428.85 and 8,517.09 is: 11,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,803.53 : 20,428.85 = 8,517.09 : x
  2. Step 2: Convert to fraction form
    14,803.53/20,428.85 = 8,517.09/x
  3. Step 3: Cross multiply
    14,803.53x = 20,428.85 × 8,517.09
  4. Step 4: Simplify right side
    14,803.53x = 173,994,311.46
  5. Step 5: Solve for x
    x = 173,994,311.46/14,803.53
  6. Step 6: Final answer
    x = 11,753.57

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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.