Home / 12,190.04-18,284.92-3,869.84

Finding the Fourth Proportional to 12,190.04, 18,284.92 and 3,869.84

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Solution

The fourth proportional to 12,190.04, 18,284.92 and 3,869.84 is: 5,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.04 : 18,284.92 = 3,869.84 : x
  2. Step 2: Convert to fraction form
    12,190.04/18,284.92 = 3,869.84/x
  3. Step 3: Cross multiply
    12,190.04x = 18,284.92 × 3,869.84
  4. Step 4: Simplify right side
    12,190.04x = 70,759,714.81
  5. Step 5: Solve for x
    x = 70,759,714.81/12,190.04
  6. Step 6: Final answer
    x = 5,804.72

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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.