Home / 18,519.68-27,782.26-5,370.35

Finding the Fourth Proportional to 18,519.68, 27,782.26 and 5,370.35

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Solution

The fourth proportional to 18,519.68, 27,782.26 and 5,370.35 is: 8,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.68 : 27,782.26 = 5,370.35 : x
  2. Step 2: Convert to fraction form
    18,519.68/27,782.26 = 5,370.35/x
  3. Step 3: Cross multiply
    18,519.68x = 27,782.26 × 5,370.35
  4. Step 4: Simplify right side
    18,519.68x = 149,200,307.65
  5. Step 5: Solve for x
    x = 149,200,307.65/18,519.68
  6. Step 6: Final answer
    x = 8,056.31

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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.