Home / 12,090.06-18,112.14-5,831.46

Finding the Fourth Proportional to 12,090.06, 18,112.14 and 5,831.46

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Solution

The fourth proportional to 12,090.06, 18,112.14 and 5,831.46 is: 8,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.06 : 18,112.14 = 5,831.46 : x
  2. Step 2: Convert to fraction form
    12,090.06/18,112.14 = 5,831.46/x
  3. Step 3: Cross multiply
    12,090.06x = 18,112.14 × 5,831.46
  4. Step 4: Simplify right side
    12,090.06x = 105,620,219.92
  5. Step 5: Solve for x
    x = 105,620,219.92/12,090.06
  6. Step 6: Final answer
    x = 8,736.12

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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.