Home / 12,584.40-18,876.60-11,223.60

Finding the Fourth Proportional to 12,584.40, 18,876.60 and 11,223.60

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Solution

The fourth proportional to 12,584.40, 18,876.60 and 11,223.60 is: 16,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584.40 : 18,876.60 = 11,223.60 : x
  2. Step 2: Convert to fraction form
    12,584.40/18,876.60 = 11,223.60/x
  3. Step 3: Cross multiply
    12,584.40x = 18,876.60 × 11,223.60
  4. Step 4: Simplify right side
    12,584.40x = 211,863,407.76
  5. Step 5: Solve for x
    x = 211,863,407.76/12,584.40
  6. Step 6: Final answer
    x = 16,835.40

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Similar ratio
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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.