Home / 18,255.02-27,386.52-7,162.70

Finding the Fourth Proportional to 18,255.02, 27,386.52 and 7,162.70

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Solution

The fourth proportional to 18,255.02, 27,386.52 and 7,162.70 is: 10,745.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.02 : 27,386.52 = 7,162.70 : x
  2. Step 2: Convert to fraction form
    18,255.02/27,386.52 = 7,162.70/x
  3. Step 3: Cross multiply
    18,255.02x = 27,386.52 × 7,162.70
  4. Step 4: Simplify right side
    18,255.02x = 196,161,426.80
  5. Step 5: Solve for x
    x = 196,161,426.80/18,255.02
  6. Step 6: Final answer
    x = 10,745.62

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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.