Home / 7,975.96-11,007.32-6,647.35

Finding the Fourth Proportional to 7,975.96, 11,007.32 and 6,647.35

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Solution

The fourth proportional to 7,975.96, 11,007.32 and 6,647.35 is: 9,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.96 : 11,007.32 = 6,647.35 : x
  2. Step 2: Convert to fraction form
    7,975.96/11,007.32 = 6,647.35/x
  3. Step 3: Cross multiply
    7,975.96x = 11,007.32 × 6,647.35
  4. Step 4: Simplify right side
    7,975.96x = 73,169,533.62
  5. Step 5: Solve for x
    x = 73,169,533.62/7,975.96
  6. Step 6: Final answer
    x = 9,173.76

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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.