Home / 11,965.33-16,503.58-8,779.60

Finding the Fourth Proportional to 11,965.33, 16,503.58 and 8,779.60

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Solution

The fourth proportional to 11,965.33, 16,503.58 and 8,779.60 is: 12,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.33 : 16,503.58 = 8,779.60 : x
  2. Step 2: Convert to fraction form
    11,965.33/16,503.58 = 8,779.60/x
  3. Step 3: Cross multiply
    11,965.33x = 16,503.58 × 8,779.60
  4. Step 4: Simplify right side
    11,965.33x = 144,894,830.97
  5. Step 5: Solve for x
    x = 144,894,830.97/11,965.33
  6. Step 6: Final answer
    x = 12,109.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.