Home / 6,918.64-10,388.90-5,464.28

Finding the Fourth Proportional to 6,918.64, 10,388.90 and 5,464.28

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Solution

The fourth proportional to 6,918.64, 10,388.90 and 5,464.28 is: 8,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.64 : 10,388.90 = 5,464.28 : x
  2. Step 2: Convert to fraction form
    6,918.64/10,388.90 = 5,464.28/x
  3. Step 3: Cross multiply
    6,918.64x = 10,388.90 × 5,464.28
  4. Step 4: Simplify right side
    6,918.64x = 56,767,898.12
  5. Step 5: Solve for x
    x = 56,767,898.12/6,918.64
  6. Step 6: Final answer
    x = 8,205.07

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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.