Home / 12,180.82-18,271.23-2,946.82

Finding the Fourth Proportional to 12,180.82, 18,271.23 and 2,946.82

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Solution

The fourth proportional to 12,180.82, 18,271.23 and 2,946.82 is: 4,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.82 : 18,271.23 = 2,946.82 : x
  2. Step 2: Convert to fraction form
    12,180.82/18,271.23 = 2,946.82/x
  3. Step 3: Cross multiply
    12,180.82x = 18,271.23 × 2,946.82
  4. Step 4: Simplify right side
    12,180.82x = 53,842,025.99
  5. Step 5: Solve for x
    x = 53,842,025.99/12,180.82
  6. Step 6: Final answer
    x = 4,420.23

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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.