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Finding the Fourth Proportional to 6,999.94, 10,501.45 and 5,145.44

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Solution

The fourth proportional to 6,999.94, 10,501.45 and 5,145.44 is: 7,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.94 : 10,501.45 = 5,145.44 : x
  2. Step 2: Convert to fraction form
    6,999.94/10,501.45 = 5,145.44/x
  3. Step 3: Cross multiply
    6,999.94x = 10,501.45 × 5,145.44
  4. Step 4: Simplify right side
    6,999.94x = 54,034,540.25
  5. Step 5: Solve for x
    x = 54,034,540.25/6,999.94
  6. Step 6: Final answer
    x = 7,719.28

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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.