Home / 12,228.40-18,342.60-2,994.40

Finding the Fourth Proportional to 12,228.40, 18,342.60 and 2,994.40

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Solution

The fourth proportional to 12,228.40, 18,342.60 and 2,994.40 is: 4,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.40 : 18,342.60 = 2,994.40 : x
  2. Step 2: Convert to fraction form
    12,228.40/18,342.60 = 2,994.40/x
  3. Step 3: Cross multiply
    12,228.40x = 18,342.60 × 2,994.40
  4. Step 4: Simplify right side
    12,228.40x = 54,925,081.44
  5. Step 5: Solve for x
    x = 54,925,081.44/12,228.40
  6. Step 6: Final answer
    x = 4,491.60

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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.