Home / 8,125.76-12,186.14-3,445.68

Finding the Fourth Proportional to 8,125.76, 12,186.14 and 3,445.68

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Solution

The fourth proportional to 8,125.76, 12,186.14 and 3,445.68 is: 5,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.76 : 12,186.14 = 3,445.68 : x
  2. Step 2: Convert to fraction form
    8,125.76/12,186.14 = 3,445.68/x
  3. Step 3: Cross multiply
    8,125.76x = 12,186.14 × 3,445.68
  4. Step 4: Simplify right side
    8,125.76x = 41,989,538.88
  5. Step 5: Solve for x
    x = 41,989,538.88/8,125.76
  6. Step 6: Final answer
    x = 5,167.46

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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.