Home / 11,999.10-16,558.47-6,693.78

Finding the Fourth Proportional to 11,999.10, 16,558.47 and 6,693.78

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Solution

The fourth proportional to 11,999.10, 16,558.47 and 6,693.78 is: 9,237.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.10 : 16,558.47 = 6,693.78 : x
  2. Step 2: Convert to fraction form
    11,999.10/16,558.47 = 6,693.78/x
  3. Step 3: Cross multiply
    11,999.10x = 16,558.47 × 6,693.78
  4. Step 4: Simplify right side
    11,999.10x = 110,838,755.32
  5. Step 5: Solve for x
    x = 110,838,755.32/11,999.10
  6. Step 6: Final answer
    x = 9,237.26

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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.