Home / 8,460.68-12,688.98-3,196.22

Finding the Fourth Proportional to 8,460.68, 12,688.98 and 3,196.22

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Solution

The fourth proportional to 8,460.68, 12,688.98 and 3,196.22 is: 4,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.68 : 12,688.98 = 3,196.22 : x
  2. Step 2: Convert to fraction form
    8,460.68/12,688.98 = 3,196.22/x
  3. Step 3: Cross multiply
    8,460.68x = 12,688.98 × 3,196.22
  4. Step 4: Simplify right side
    8,460.68x = 40,556,771.66
  5. Step 5: Solve for x
    x = 40,556,771.66/8,460.68
  6. Step 6: Final answer
    x = 4,793.56

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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.