Home / 18,120.94-27,182.32-6,435.07

Finding the Fourth Proportional to 18,120.94, 27,182.32 and 6,435.07

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Solution

The fourth proportional to 18,120.94, 27,182.32 and 6,435.07 is: 9,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.94 : 27,182.32 = 6,435.07 : x
  2. Step 2: Convert to fraction form
    18,120.94/27,182.32 = 6,435.07/x
  3. Step 3: Cross multiply
    18,120.94x = 27,182.32 × 6,435.07
  4. Step 4: Simplify right side
    18,120.94x = 174,920,047.92
  5. Step 5: Solve for x
    x = 174,920,047.92/18,120.94
  6. Step 6: Final answer
    x = 9,652.92

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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.