Home / 18,228.94-27,345.69-7,134.20

Finding the Fourth Proportional to 18,228.94, 27,345.69 and 7,134.20

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Solution

The fourth proportional to 18,228.94, 27,345.69 and 7,134.20 is: 10,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.94 : 27,345.69 = 7,134.20 : x
  2. Step 2: Convert to fraction form
    18,228.94/27,345.69 = 7,134.20/x
  3. Step 3: Cross multiply
    18,228.94x = 27,345.69 × 7,134.20
  4. Step 4: Simplify right side
    18,228.94x = 195,089,621.60
  5. Step 5: Solve for x
    x = 195,089,621.60/18,228.94
  6. Step 6: Final answer
    x = 10,702.19

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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.