Home / 12,088.36-18,129.21-3,321.19

Finding the Fourth Proportional to 12,088.36, 18,129.21 and 3,321.19

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Solution

The fourth proportional to 12,088.36, 18,129.21 and 3,321.19 is: 4,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,088.36 : 18,129.21 = 3,321.19 : x
  2. Step 2: Convert to fraction form
    12,088.36/18,129.21 = 3,321.19/x
  3. Step 3: Cross multiply
    12,088.36x = 18,129.21 × 3,321.19
  4. Step 4: Simplify right side
    12,088.36x = 60,210,550.96
  5. Step 5: Solve for x
    x = 60,210,550.96/12,088.36
  6. Step 6: Final answer
    x = 4,980.87

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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.