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Finding the Fourth Proportional to 14,770.85, 20,384.28 and 8,056.85

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Solution

The fourth proportional to 14,770.85, 20,384.28 and 8,056.85 is: 11,118.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.85 : 20,384.28 = 8,056.85 : x
  2. Step 2: Convert to fraction form
    14,770.85/20,384.28 = 8,056.85/x
  3. Step 3: Cross multiply
    14,770.85x = 20,384.28 × 8,056.85
  4. Step 4: Simplify right side
    14,770.85x = 164,232,984.40
  5. Step 5: Solve for x
    x = 164,232,984.40/14,770.85
  6. Step 6: Final answer
    x = 11,118.73

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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.