Home / 18,487.25-27,718.75-6,635.08

Finding the Fourth Proportional to 18,487.25, 27,718.75 and 6,635.08

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Solution

The fourth proportional to 18,487.25, 27,718.75 and 6,635.08 is: 9,948.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.25 : 27,718.75 = 6,635.08 : x
  2. Step 2: Convert to fraction form
    18,487.25/27,718.75 = 6,635.08/x
  3. Step 3: Cross multiply
    18,487.25x = 27,718.75 × 6,635.08
  4. Step 4: Simplify right side
    18,487.25x = 183,916,037.87
  5. Step 5: Solve for x
    x = 183,916,037.87/18,487.25
  6. Step 6: Final answer
    x = 9,948.26

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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.