Home / 12,192.60-18,283.46-3,871.08

Finding the Fourth Proportional to 12,192.60, 18,283.46 and 3,871.08

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Solution

The fourth proportional to 12,192.60, 18,283.46 and 3,871.08 is: 5,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.60 : 18,283.46 = 3,871.08 : x
  2. Step 2: Convert to fraction form
    12,192.60/18,283.46 = 3,871.08/x
  3. Step 3: Cross multiply
    12,192.60x = 18,283.46 × 3,871.08
  4. Step 4: Simplify right side
    12,192.60x = 70,776,736.34
  5. Step 5: Solve for x
    x = 70,776,736.34/12,192.60
  6. Step 6: Final answer
    x = 5,804.89

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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.