Home / 18,179.02-27,268.80-7,790.50

Finding the Fourth Proportional to 18,179.02, 27,268.80 and 7,790.50

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Solution

The fourth proportional to 18,179.02, 27,268.80 and 7,790.50 is: 11,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.02 : 27,268.80 = 7,790.50 : x
  2. Step 2: Convert to fraction form
    18,179.02/27,268.80 = 7,790.50/x
  3. Step 3: Cross multiply
    18,179.02x = 27,268.80 × 7,790.50
  4. Step 4: Simplify right side
    18,179.02x = 212,437,586.40
  5. Step 5: Solve for x
    x = 212,437,586.40/18,179.02
  6. Step 6: Final answer
    x = 11,685.87

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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.