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Finding the Fourth Proportional to 11,999.51, 16,560.28 and 6,623.02

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Solution

The fourth proportional to 11,999.51, 16,560.28 and 6,623.02 is: 9,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.51 : 16,560.28 = 6,623.02 : x
  2. Step 2: Convert to fraction form
    11,999.51/16,560.28 = 6,623.02/x
  3. Step 3: Cross multiply
    11,999.51x = 16,560.28 × 6,623.02
  4. Step 4: Simplify right side
    11,999.51x = 109,679,092.30
  5. Step 5: Solve for x
    x = 109,679,092.30/11,999.51
  6. Step 6: Final answer
    x = 9,140.30

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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.