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Finding the Fourth Proportional to 9,999.69, 14,989.28 and 5,054.34

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Solution

The fourth proportional to 9,999.69, 14,989.28 and 5,054.34 is: 7,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.69 : 14,989.28 = 5,054.34 : x
  2. Step 2: Convert to fraction form
    9,999.69/14,989.28 = 5,054.34/x
  3. Step 3: Cross multiply
    9,999.69x = 14,989.28 × 5,054.34
  4. Step 4: Simplify right side
    9,999.69x = 75,760,917.48
  5. Step 5: Solve for x
    x = 75,760,917.48/9,999.69
  6. Step 6: Final answer
    x = 7,576.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.