Home / 19,189.32-28,759.56-8,648.04

Finding the Fourth Proportional to 19,189.32, 28,759.56 and 8,648.04

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Solution

The fourth proportional to 19,189.32, 28,759.56 and 8,648.04 is: 12,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.32 : 28,759.56 = 8,648.04 : x
  2. Step 2: Convert to fraction form
    19,189.32/28,759.56 = 8,648.04/x
  3. Step 3: Cross multiply
    19,189.32x = 28,759.56 × 8,648.04
  4. Step 4: Simplify right side
    19,189.32x = 248,713,825.26
  5. Step 5: Solve for x
    x = 248,713,825.26/19,189.32
  6. Step 6: Final answer
    x = 12,961.05

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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.