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Finding the Fourth Proportional to 6,604.36, 9,887.33 and 5,139.07

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Solution

The fourth proportional to 6,604.36, 9,887.33 and 5,139.07 is: 7,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.36 : 9,887.33 = 5,139.07 : x
  2. Step 2: Convert to fraction form
    6,604.36/9,887.33 = 5,139.07/x
  3. Step 3: Cross multiply
    6,604.36x = 9,887.33 × 5,139.07
  4. Step 4: Simplify right side
    6,604.36x = 50,811,669.11
  5. Step 5: Solve for x
    x = 50,811,669.11/6,604.36
  6. Step 6: Final answer
    x = 7,693.66

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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.