Home / 11,809.60-16,299.04-8,972.32

Finding the Fourth Proportional to 11,809.60, 16,299.04 and 8,972.32

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Solution

The fourth proportional to 11,809.60, 16,299.04 and 8,972.32 is: 12,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.60 : 16,299.04 = 8,972.32 : x
  2. Step 2: Convert to fraction form
    11,809.60/16,299.04 = 8,972.32/x
  3. Step 3: Cross multiply
    11,809.60x = 16,299.04 × 8,972.32
  4. Step 4: Simplify right side
    11,809.60x = 146,240,202.57
  5. Step 5: Solve for x
    x = 146,240,202.57/11,809.60
  6. Step 6: Final answer
    x = 12,383.16

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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.