Home / 6,921.45-10,355.04-5,349.51

Finding the Fourth Proportional to 6,921.45, 10,355.04 and 5,349.51

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Solution

The fourth proportional to 6,921.45, 10,355.04 and 5,349.51 is: 8,003.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.45 : 10,355.04 = 5,349.51 : x
  2. Step 2: Convert to fraction form
    6,921.45/10,355.04 = 5,349.51/x
  3. Step 3: Cross multiply
    6,921.45x = 10,355.04 × 5,349.51
  4. Step 4: Simplify right side
    6,921.45x = 55,394,390.03
  5. Step 5: Solve for x
    x = 55,394,390.03/6,921.45
  6. Step 6: Final answer
    x = 8,003.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.