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Finding the Fourth Proportional to 11,999.79, 16,560.03 and 6,695.64

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Solution

The fourth proportional to 11,999.79, 16,560.03 and 6,695.64 is: 9,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.79 : 16,560.03 = 6,695.64 : x
  2. Step 2: Convert to fraction form
    11,999.79/16,560.03 = 6,695.64/x
  3. Step 3: Cross multiply
    11,999.79x = 16,560.03 × 6,695.64
  4. Step 4: Simplify right side
    11,999.79x = 110,879,999.27
  5. Step 5: Solve for x
    x = 110,879,999.27/11,999.79
  6. Step 6: Final answer
    x = 9,240.16

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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.