Home / 18,660.02-27,989.58-7,563.74

Finding the Fourth Proportional to 18,660.02, 27,989.58 and 7,563.74

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Solution

The fourth proportional to 18,660.02, 27,989.58 and 7,563.74 is: 11,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.02 : 27,989.58 = 7,563.74 : x
  2. Step 2: Convert to fraction form
    18,660.02/27,989.58 = 7,563.74/x
  3. Step 3: Cross multiply
    18,660.02x = 27,989.58 × 7,563.74
  4. Step 4: Simplify right side
    18,660.02x = 211,705,905.83
  5. Step 5: Solve for x
    x = 211,705,905.83/18,660.02
  6. Step 6: Final answer
    x = 11,345.43

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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.