Home / 12,090.14-18,134.85-3,325.58

Finding the Fourth Proportional to 12,090.14, 18,134.85 and 3,325.58

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Solution

The fourth proportional to 12,090.14, 18,134.85 and 3,325.58 is: 4,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.14 : 18,134.85 = 3,325.58 : x
  2. Step 2: Convert to fraction form
    12,090.14/18,134.85 = 3,325.58/x
  3. Step 3: Cross multiply
    12,090.14x = 18,134.85 × 3,325.58
  4. Step 4: Simplify right side
    12,090.14x = 60,308,894.46
  5. Step 5: Solve for x
    x = 60,308,894.46/12,090.14
  6. Step 6: Final answer
    x = 4,988.27

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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.