Home / 14,905.12-20,569.12-8,617.44

Finding the Fourth Proportional to 14,905.12, 20,569.12 and 8,617.44

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Solution

The fourth proportional to 14,905.12, 20,569.12 and 8,617.44 is: 11,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.12 : 20,569.12 = 8,617.44 : x
  2. Step 2: Convert to fraction form
    14,905.12/20,569.12 = 8,617.44/x
  3. Step 3: Cross multiply
    14,905.12x = 20,569.12 × 8,617.44
  4. Step 4: Simplify right side
    14,905.12x = 177,253,157.45
  5. Step 5: Solve for x
    x = 177,253,157.45/14,905.12
  6. Step 6: Final answer
    x = 11,892.10

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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.