Home / 12,192.80-18,289.11-3,873.47

Finding the Fourth Proportional to 12,192.80, 18,289.11 and 3,873.47

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Solution

The fourth proportional to 12,192.80, 18,289.11 and 3,873.47 is: 5,810.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.80 : 18,289.11 = 3,873.47 : x
  2. Step 2: Convert to fraction form
    12,192.80/18,289.11 = 3,873.47/x
  3. Step 3: Cross multiply
    12,192.80x = 18,289.11 × 3,873.47
  4. Step 4: Simplify right side
    12,192.80x = 70,842,208.10
  5. Step 5: Solve for x
    x = 70,842,208.10/12,192.80
  6. Step 6: Final answer
    x = 5,810.17

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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.