Home / 18,273.18-27,409.78-6,435.70

Finding the Fourth Proportional to 18,273.18, 27,409.78 and 6,435.70

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Solution

The fourth proportional to 18,273.18, 27,409.78 and 6,435.70 is: 9,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.18 : 27,409.78 = 6,435.70 : x
  2. Step 2: Convert to fraction form
    18,273.18/27,409.78 = 6,435.70/x
  3. Step 3: Cross multiply
    18,273.18x = 27,409.78 × 6,435.70
  4. Step 4: Simplify right side
    18,273.18x = 176,401,060.67
  5. Step 5: Solve for x
    x = 176,401,060.67/18,273.18
  6. Step 6: Final answer
    x = 9,653.55

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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.