Home / 12,110.48-18,155.91-3,786.21

Finding the Fourth Proportional to 12,110.48, 18,155.91 and 3,786.21

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Solution

The fourth proportional to 12,110.48, 18,155.91 and 3,786.21 is: 5,676.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.48 : 18,155.91 = 3,786.21 : x
  2. Step 2: Convert to fraction form
    12,110.48/18,155.91 = 3,786.21/x
  3. Step 3: Cross multiply
    12,110.48x = 18,155.91 × 3,786.21
  4. Step 4: Simplify right side
    12,110.48x = 68,742,088.00
  5. Step 5: Solve for x
    x = 68,742,088.00/12,110.48
  6. Step 6: Final answer
    x = 5,676.25

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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.