Home / 12,798.12-19,195.60-3,438.84

Finding the Fourth Proportional to 12,798.12, 19,195.60 and 3,438.84

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Solution

The fourth proportional to 12,798.12, 19,195.60 and 3,438.84 is: 5,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.12 : 19,195.60 = 3,438.84 : x
  2. Step 2: Convert to fraction form
    12,798.12/19,195.60 = 3,438.84/x
  3. Step 3: Cross multiply
    12,798.12x = 19,195.60 × 3,438.84
  4. Step 4: Simplify right side
    12,798.12x = 66,010,597.10
  5. Step 5: Solve for x
    x = 66,010,597.10/12,798.12
  6. Step 6: Final answer
    x = 5,157.84

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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.