Home / 7,515.37-11,272.72-1,968.59

Finding the Fourth Proportional to 7,515.37, 11,272.72 and 1,968.59

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Solution

The fourth proportional to 7,515.37, 11,272.72 and 1,968.59 is: 2,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.37 : 11,272.72 = 1,968.59 : x
  2. Step 2: Convert to fraction form
    7,515.37/11,272.72 = 1,968.59/x
  3. Step 3: Cross multiply
    7,515.37x = 11,272.72 × 1,968.59
  4. Step 4: Simplify right side
    7,515.37x = 22,191,374.96
  5. Step 5: Solve for x
    x = 22,191,374.96/7,515.37
  6. Step 6: Final answer
    x = 2,952.80

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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.