Home / 12,090.92-18,134.54-4,085.58

Finding the Fourth Proportional to 12,090.92, 18,134.54 and 4,085.58

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Solution

The fourth proportional to 12,090.92, 18,134.54 and 4,085.58 is: 6,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.92 : 18,134.54 = 4,085.58 : x
  2. Step 2: Convert to fraction form
    12,090.92/18,134.54 = 4,085.58/x
  3. Step 3: Cross multiply
    12,090.92x = 18,134.54 × 4,085.58
  4. Step 4: Simplify right side
    12,090.92x = 74,090,124.15
  5. Step 5: Solve for x
    x = 74,090,124.15/12,090.92
  6. Step 6: Final answer
    x = 6,127.75

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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.