Home / 15,427.44-21,289.77-8,353.85

Finding the Fourth Proportional to 15,427.44, 21,289.77 and 8,353.85

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Solution

The fourth proportional to 15,427.44, 21,289.77 and 8,353.85 is: 11,528.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.44 : 21,289.77 = 8,353.85 : x
  2. Step 2: Convert to fraction form
    15,427.44/21,289.77 = 8,353.85/x
  3. Step 3: Cross multiply
    15,427.44x = 21,289.77 × 8,353.85
  4. Step 4: Simplify right side
    15,427.44x = 177,851,438.67
  5. Step 5: Solve for x
    x = 177,851,438.67/15,427.44
  6. Step 6: Final answer
    x = 11,528.25

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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.