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Finding the Fourth Proportional to 6,999.54, 10,499.31 and 1,805.41

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Solution

The fourth proportional to 6,999.54, 10,499.31 and 1,805.41 is: 2,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.54 : 10,499.31 = 1,805.41 : x
  2. Step 2: Convert to fraction form
    6,999.54/10,499.31 = 1,805.41/x
  3. Step 3: Cross multiply
    6,999.54x = 10,499.31 × 1,805.41
  4. Step 4: Simplify right side
    6,999.54x = 18,955,599.38
  5. Step 5: Solve for x
    x = 18,955,599.38/6,999.54
  6. Step 6: Final answer
    x = 2,708.12

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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.