Home / 13,299.30-18,354.78-7,997.04

Finding the Fourth Proportional to 13,299.30, 18,354.78 and 7,997.04

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Solution

The fourth proportional to 13,299.30, 18,354.78 and 7,997.04 is: 11,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.30 : 18,354.78 = 7,997.04 : x
  2. Step 2: Convert to fraction form
    13,299.30/18,354.78 = 7,997.04/x
  3. Step 3: Cross multiply
    13,299.30x = 18,354.78 × 7,997.04
  4. Step 4: Simplify right side
    13,299.30x = 146,783,909.85
  5. Step 5: Solve for x
    x = 146,783,909.85/13,299.30
  6. Step 6: Final answer
    x = 11,036.97

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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.