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Finding the Fourth Proportional to 11,770, 16,242.52 and 7,054.28

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Solution

The fourth proportional to 11,770, 16,242.52 and 7,054.28 is: 9,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,770 : 16,242.52 = 7,054.28 : x
  2. Step 2: Convert to fraction form
    11,770/16,242.52 = 7,054.28/x
  3. Step 3: Cross multiply
    11,770x = 16,242.52 × 7,054.28
  4. Step 4: Simplify right side
    11,770x = 114,579,283.99
  5. Step 5: Solve for x
    x = 114,579,283.99/11,770
  6. Step 6: Final answer
    x = 9,734.86

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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.