Home / 7,674.36-11,512.98-2,478.84

Finding the Fourth Proportional to 7,674.36, 11,512.98 and 2,478.84

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Solution

The fourth proportional to 7,674.36, 11,512.98 and 2,478.84 is: 3,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.36 : 11,512.98 = 2,478.84 : x
  2. Step 2: Convert to fraction form
    7,674.36/11,512.98 = 2,478.84/x
  3. Step 3: Cross multiply
    7,674.36x = 11,512.98 × 2,478.84
  4. Step 4: Simplify right side
    7,674.36x = 28,538,835.34
  5. Step 5: Solve for x
    x = 28,538,835.34/7,674.36
  6. Step 6: Final answer
    x = 3,718.73

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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.