Home / 12,130.58-18,195.77-3,365.50

Finding the Fourth Proportional to 12,130.58, 18,195.77 and 3,365.50

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Solution

The fourth proportional to 12,130.58, 18,195.77 and 3,365.50 is: 5,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.58 : 18,195.77 = 3,365.50 : x
  2. Step 2: Convert to fraction form
    12,130.58/18,195.77 = 3,365.50/x
  3. Step 3: Cross multiply
    12,130.58x = 18,195.77 × 3,365.50
  4. Step 4: Simplify right side
    12,130.58x = 61,237,768.75
  5. Step 5: Solve for x
    x = 61,237,768.75/12,130.58
  6. Step 6: Final answer
    x = 5,048.21

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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.