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Finding the Fourth Proportional to 18,444.28, 27,661.02 and 7,347.28

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Solution

The fourth proportional to 18,444.28, 27,661.02 and 7,347.28 is: 11,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,444.28 : 27,661.02 = 7,347.28 : x
  2. Step 2: Convert to fraction form
    18,444.28/27,661.02 = 7,347.28/x
  3. Step 3: Cross multiply
    18,444.28x = 27,661.02 × 7,347.28
  4. Step 4: Simplify right side
    18,444.28x = 203,233,259.03
  5. Step 5: Solve for x
    x = 203,233,259.03/18,444.28
  6. Step 6: Final answer
    x = 11,018.77

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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.