Home / 18,405.08-27,604.80-6,718.32

Finding the Fourth Proportional to 18,405.08, 27,604.80 and 6,718.32

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Solution

The fourth proportional to 18,405.08, 27,604.80 and 6,718.32 is: 10,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.08 : 27,604.80 = 6,718.32 : x
  2. Step 2: Convert to fraction form
    18,405.08/27,604.80 = 6,718.32/x
  3. Step 3: Cross multiply
    18,405.08x = 27,604.80 × 6,718.32
  4. Step 4: Simplify right side
    18,405.08x = 185,457,879.94
  5. Step 5: Solve for x
    x = 185,457,879.94/18,405.08
  6. Step 6: Final answer
    x = 10,076.45

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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.