Home / 11,144.58-15,376.41-8,779.38

Finding the Fourth Proportional to 11,144.58, 15,376.41 and 8,779.38

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Solution

The fourth proportional to 11,144.58, 15,376.41 and 8,779.38 is: 12,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.58 : 15,376.41 = 8,779.38 : x
  2. Step 2: Convert to fraction form
    11,144.58/15,376.41 = 8,779.38/x
  3. Step 3: Cross multiply
    11,144.58x = 15,376.41 × 8,779.38
  4. Step 4: Simplify right side
    11,144.58x = 134,995,346.43
  5. Step 5: Solve for x
    x = 134,995,346.43/11,144.58
  6. Step 6: Final answer
    x = 12,113.09

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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.