Home / 18,618.02-27,936.14-8,758.30

Finding the Fourth Proportional to 18,618.02, 27,936.14 and 8,758.30

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Solution

The fourth proportional to 18,618.02, 27,936.14 and 8,758.30 is: 13,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.02 : 27,936.14 = 8,758.30 : x
  2. Step 2: Convert to fraction form
    18,618.02/27,936.14 = 8,758.30/x
  3. Step 3: Cross multiply
    18,618.02x = 27,936.14 × 8,758.30
  4. Step 4: Simplify right side
    18,618.02x = 244,673,094.96
  5. Step 5: Solve for x
    x = 244,673,094.96/18,618.02
  6. Step 6: Final answer
    x = 13,141.74

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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.