Home / 15,110.32-20,852.52-8,396.56

Finding the Fourth Proportional to 15,110.32, 20,852.52 and 8,396.56

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Solution

The fourth proportional to 15,110.32, 20,852.52 and 8,396.56 is: 11,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.32 : 20,852.52 = 8,396.56 : x
  2. Step 2: Convert to fraction form
    15,110.32/20,852.52 = 8,396.56/x
  3. Step 3: Cross multiply
    15,110.32x = 20,852.52 × 8,396.56
  4. Step 4: Simplify right side
    15,110.32x = 175,089,435.33
  5. Step 5: Solve for x
    x = 175,089,435.33/15,110.32
  6. Step 6: Final answer
    x = 11,587.41

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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.