Home / 7,464.78-11,197.31-1,918.14

Finding the Fourth Proportional to 7,464.78, 11,197.31 and 1,918.14

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Solution

The fourth proportional to 7,464.78, 11,197.31 and 1,918.14 is: 2,877.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,464.78 : 11,197.31 = 1,918.14 : x
  2. Step 2: Convert to fraction form
    7,464.78/11,197.31 = 1,918.14/x
  3. Step 3: Cross multiply
    7,464.78x = 11,197.31 × 1,918.14
  4. Step 4: Simplify right side
    7,464.78x = 21,477,998.61
  5. Step 5: Solve for x
    x = 21,477,998.61/7,464.78
  6. Step 6: Final answer
    x = 2,877.24

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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.