Home / 12,695.20-19,059.90-7,435.60

Finding the Fourth Proportional to 12,695.20, 19,059.90 and 7,435.60

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Solution

The fourth proportional to 12,695.20, 19,059.90 and 7,435.60 is: 11,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.20 : 19,059.90 = 7,435.60 : x
  2. Step 2: Convert to fraction form
    12,695.20/19,059.90 = 7,435.60/x
  3. Step 3: Cross multiply
    12,695.20x = 19,059.90 × 7,435.60
  4. Step 4: Simplify right side
    12,695.20x = 141,721,792.44
  5. Step 5: Solve for x
    x = 141,721,792.44/12,695.20
  6. Step 6: Final answer
    x = 11,163.42

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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.