Home / 18,982.31-28,483.74-7,896.65

Finding the Fourth Proportional to 18,982.31, 28,483.74 and 7,896.65

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Solution

The fourth proportional to 18,982.31, 28,483.74 and 7,896.65 is: 11,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.31 : 28,483.74 = 7,896.65 : x
  2. Step 2: Convert to fraction form
    18,982.31/28,483.74 = 7,896.65/x
  3. Step 3: Cross multiply
    18,982.31x = 28,483.74 × 7,896.65
  4. Step 4: Simplify right side
    18,982.31x = 224,925,983.05
  5. Step 5: Solve for x
    x = 224,925,983.05/18,982.31
  6. Step 6: Final answer
    x = 11,849.25

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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.