Home / 6,647.63-9,173.75-3,663.50

Finding the Fourth Proportional to 6,647.63, 9,173.75 and 3,663.50

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Solution

The fourth proportional to 6,647.63, 9,173.75 and 3,663.50 is: 5,055.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.63 : 9,173.75 = 3,663.50 : x
  2. Step 2: Convert to fraction form
    6,647.63/9,173.75 = 3,663.50/x
  3. Step 3: Cross multiply
    6,647.63x = 9,173.75 × 3,663.50
  4. Step 4: Simplify right side
    6,647.63x = 33,607,968.94
  5. Step 5: Solve for x
    x = 33,607,968.94/6,647.63
  6. Step 6: Final answer
    x = 5,055.64

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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.