Home / 6,989.60-9,647.01-4,007.43

Finding the Fourth Proportional to 6,989.60, 9,647.01 and 4,007.43

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Solution

The fourth proportional to 6,989.60, 9,647.01 and 4,007.43 is: 5,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.60 : 9,647.01 = 4,007.43 : x
  2. Step 2: Convert to fraction form
    6,989.60/9,647.01 = 4,007.43/x
  3. Step 3: Cross multiply
    6,989.60x = 9,647.01 × 4,007.43
  4. Step 4: Simplify right side
    6,989.60x = 38,659,717.28
  5. Step 5: Solve for x
    x = 38,659,717.28/6,989.60
  6. Step 6: Final answer
    x = 5,531.04

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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.