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Finding the Fourth Proportional to 9,999.71, 14,936.60 and 7,343.72

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Solution

The fourth proportional to 9,999.71, 14,936.60 and 7,343.72 is: 10,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.71 : 14,936.60 = 7,343.72 : x
  2. Step 2: Convert to fraction form
    9,999.71/14,936.60 = 7,343.72/x
  3. Step 3: Cross multiply
    9,999.71x = 14,936.60 × 7,343.72
  4. Step 4: Simplify right side
    9,999.71x = 109,690,208.15
  5. Step 5: Solve for x
    x = 109,690,208.15/9,999.71
  6. Step 6: Final answer
    x = 10,969.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.