Home / 18,269.32-27,405.18-5,122.20

Finding the Fourth Proportional to 18,269.32, 27,405.18 and 5,122.20

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Solution

The fourth proportional to 18,269.32, 27,405.18 and 5,122.20 is: 7,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.32 : 27,405.18 = 5,122.20 : x
  2. Step 2: Convert to fraction form
    18,269.32/27,405.18 = 5,122.20/x
  3. Step 3: Cross multiply
    18,269.32x = 27,405.18 × 5,122.20
  4. Step 4: Simplify right side
    18,269.32x = 140,374,813.00
  5. Step 5: Solve for x
    x = 140,374,813.00/18,269.32
  6. Step 6: Final answer
    x = 7,683.64

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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.