Home / 18,185.12-27,274.62-5,038.80

Finding the Fourth Proportional to 18,185.12, 27,274.62 and 5,038.80

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Solution

The fourth proportional to 18,185.12, 27,274.62 and 5,038.80 is: 7,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.12 : 27,274.62 = 5,038.80 : x
  2. Step 2: Convert to fraction form
    18,185.12/27,274.62 = 5,038.80/x
  3. Step 3: Cross multiply
    18,185.12x = 27,274.62 × 5,038.80
  4. Step 4: Simplify right side
    18,185.12x = 137,431,355.26
  5. Step 5: Solve for x
    x = 137,431,355.26/18,185.12
  6. Step 6: Final answer
    x = 7,557.35

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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.