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Finding the Fourth Proportional to 9,889.36, 14,837.99 and 7,270.11

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Solution

The fourth proportional to 9,889.36, 14,837.99 and 7,270.11 is: 10,908.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.36 : 14,837.99 = 7,270.11 : x
  2. Step 2: Convert to fraction form
    9,889.36/14,837.99 = 7,270.11/x
  3. Step 3: Cross multiply
    9,889.36x = 14,837.99 × 7,270.11
  4. Step 4: Simplify right side
    9,889.36x = 107,873,783.13
  5. Step 5: Solve for x
    x = 107,873,783.13/9,889.36
  6. Step 6: Final answer
    x = 10,908.07

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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.