Home / 7,968.08-11,951.40-2,124.50

Finding the Fourth Proportional to 7,968.08, 11,951.40 and 2,124.50

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Solution

The fourth proportional to 7,968.08, 11,951.40 and 2,124.50 is: 3,186.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.08 : 11,951.40 = 2,124.50 : x
  2. Step 2: Convert to fraction form
    7,968.08/11,951.40 = 2,124.50/x
  3. Step 3: Cross multiply
    7,968.08x = 11,951.40 × 2,124.50
  4. Step 4: Simplify right side
    7,968.08x = 25,390,749.30
  5. Step 5: Solve for x
    x = 25,390,749.30/7,968.08
  6. Step 6: Final answer
    x = 3,186.56

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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.