Home / 6,860.40-9,467.64-3,876.36

Finding the Fourth Proportional to 6,860.40, 9,467.64 and 3,876.36

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Solution

The fourth proportional to 6,860.40, 9,467.64 and 3,876.36 is: 5,349.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.40 : 9,467.64 = 3,876.36 : x
  2. Step 2: Convert to fraction form
    6,860.40/9,467.64 = 3,876.36/x
  3. Step 3: Cross multiply
    6,860.40x = 9,467.64 × 3,876.36
  4. Step 4: Simplify right side
    6,860.40x = 36,699,980.99
  5. Step 5: Solve for x
    x = 36,699,980.99/6,860.40
  6. Step 6: Final answer
    x = 5,349.54

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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.