Home / 18,551.49-27,836.37-8,689.06

Finding the Fourth Proportional to 18,551.49, 27,836.37 and 8,689.06

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Solution

The fourth proportional to 18,551.49, 27,836.37 and 8,689.06 is: 13,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.49 : 27,836.37 = 8,689.06 : x
  2. Step 2: Convert to fraction form
    18,551.49/27,836.37 = 8,689.06/x
  3. Step 3: Cross multiply
    18,551.49x = 27,836.37 × 8,689.06
  4. Step 4: Simplify right side
    18,551.49x = 241,871,889.11
  5. Step 5: Solve for x
    x = 241,871,889.11/18,551.49
  6. Step 6: Final answer
    x = 13,037.87

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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.