Home / 7,004.70-9,669.69-4,989.42

Finding the Fourth Proportional to 7,004.70, 9,669.69 and 4,989.42

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Solution

The fourth proportional to 7,004.70, 9,669.69 and 4,989.42 is: 6,887.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,004.70 : 9,669.69 = 4,989.42 : x
  2. Step 2: Convert to fraction form
    7,004.70/9,669.69 = 4,989.42/x
  3. Step 3: Cross multiply
    7,004.70x = 9,669.69 × 4,989.42
  4. Step 4: Simplify right side
    7,004.70x = 48,246,144.68
  5. Step 5: Solve for x
    x = 48,246,144.68/7,004.70
  6. Step 6: Final answer
    x = 6,887.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.