Home / 6,647.45-9,173.33-3,663.20

Finding the Fourth Proportional to 6,647.45, 9,173.33 and 3,663.20

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Solution

The fourth proportional to 6,647.45, 9,173.33 and 3,663.20 is: 5,055.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.45 : 9,173.33 = 3,663.20 : x
  2. Step 2: Convert to fraction form
    6,647.45/9,173.33 = 3,663.20/x
  3. Step 3: Cross multiply
    6,647.45x = 9,173.33 × 3,663.20
  4. Step 4: Simplify right side
    6,647.45x = 33,603,742.46
  5. Step 5: Solve for x
    x = 33,603,742.46/6,647.45
  6. Step 6: Final answer
    x = 5,055.14

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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.