Home / 17,919.12-26,878.73-5,439.25

Finding the Fourth Proportional to 17,919.12, 26,878.73 and 5,439.25

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Solution

The fourth proportional to 17,919.12, 26,878.73 and 5,439.25 is: 8,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.12 : 26,878.73 = 5,439.25 : x
  2. Step 2: Convert to fraction form
    17,919.12/26,878.73 = 5,439.25/x
  3. Step 3: Cross multiply
    17,919.12x = 26,878.73 × 5,439.25
  4. Step 4: Simplify right side
    17,919.12x = 146,200,132.15
  5. Step 5: Solve for x
    x = 146,200,132.15/17,919.12
  6. Step 6: Final answer
    x = 8,158.89

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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.