Home / 19,912.12-29,847.34-7,427.13

Finding the Fourth Proportional to 19,912.12, 29,847.34 and 7,427.13

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Solution

The fourth proportional to 19,912.12, 29,847.34 and 7,427.13 is: 11,132.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.12 : 29,847.34 = 7,427.13 : x
  2. Step 2: Convert to fraction form
    19,912.12/29,847.34 = 7,427.13/x
  3. Step 3: Cross multiply
    19,912.12x = 29,847.34 × 7,427.13
  4. Step 4: Simplify right side
    19,912.12x = 221,680,074.33
  5. Step 5: Solve for x
    x = 221,680,074.33/19,912.12
  6. Step 6: Final answer
    x = 11,132.92

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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.