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Finding the Fourth Proportional to 8,354.95, 11,529.95 and 4,578.05

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Solution

The fourth proportional to 8,354.95, 11,529.95 and 4,578.05 is: 6,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.95 : 11,529.95 = 4,578.05 : x
  2. Step 2: Convert to fraction form
    8,354.95/11,529.95 = 4,578.05/x
  3. Step 3: Cross multiply
    8,354.95x = 11,529.95 × 4,578.05
  4. Step 4: Simplify right side
    8,354.95x = 52,784,693.53
  5. Step 5: Solve for x
    x = 52,784,693.53/8,354.95
  6. Step 6: Final answer
    x = 6,317.78

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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.