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Finding the Fourth Proportional to 18,280.28, 27,422.48 and 7,185.51

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Solution

The fourth proportional to 18,280.28, 27,422.48 and 7,185.51 is: 10,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.28 : 27,422.48 = 7,185.51 : x
  2. Step 2: Convert to fraction form
    18,280.28/27,422.48 = 7,185.51/x
  3. Step 3: Cross multiply
    18,280.28x = 27,422.48 × 7,185.51
  4. Step 4: Simplify right side
    18,280.28x = 197,044,522.23
  5. Step 5: Solve for x
    x = 197,044,522.23/18,280.28
  6. Step 6: Final answer
    x = 10,779.07

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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.