Home / 12,775.84-19,168.80-8,392.48

Finding the Fourth Proportional to 12,775.84, 19,168.80 and 8,392.48

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Solution

The fourth proportional to 12,775.84, 19,168.80 and 8,392.48 is: 12,592.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.84 : 19,168.80 = 8,392.48 : x
  2. Step 2: Convert to fraction form
    12,775.84/19,168.80 = 8,392.48/x
  3. Step 3: Cross multiply
    12,775.84x = 19,168.80 × 8,392.48
  4. Step 4: Simplify right side
    12,775.84x = 160,873,770.62
  5. Step 5: Solve for x
    x = 160,873,770.62/12,775.84
  6. Step 6: Final answer
    x = 12,592.03

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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.