Home / 6,816.08-9,406.44-4,128.18

Finding the Fourth Proportional to 6,816.08, 9,406.44 and 4,128.18

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Solution

The fourth proportional to 6,816.08, 9,406.44 and 4,128.18 is: 5,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.08 : 9,406.44 = 4,128.18 : x
  2. Step 2: Convert to fraction form
    6,816.08/9,406.44 = 4,128.18/x
  3. Step 3: Cross multiply
    6,816.08x = 9,406.44 × 4,128.18
  4. Step 4: Simplify right side
    6,816.08x = 38,831,477.48
  5. Step 5: Solve for x
    x = 38,831,477.48/6,816.08
  6. Step 6: Final answer
    x = 5,697.04

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Half scale
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Double scale
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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.