Home / 7,918.08-11,877.12-3,534.36

Finding the Fourth Proportional to 7,918.08, 11,877.12 and 3,534.36

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Solution

The fourth proportional to 7,918.08, 11,877.12 and 3,534.36 is: 5,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.08 : 11,877.12 = 3,534.36 : x
  2. Step 2: Convert to fraction form
    7,918.08/11,877.12 = 3,534.36/x
  3. Step 3: Cross multiply
    7,918.08x = 11,877.12 × 3,534.36
  4. Step 4: Simplify right side
    7,918.08x = 41,978,017.84
  5. Step 5: Solve for x
    x = 41,978,017.84/7,918.08
  6. Step 6: Final answer
    x = 5,301.54

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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.