Home / 18,074.79-27,109.62-6,986.70

Finding the Fourth Proportional to 18,074.79, 27,109.62 and 6,986.70

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Solution

The fourth proportional to 18,074.79, 27,109.62 and 6,986.70 is: 10,479.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074.79 : 27,109.62 = 6,986.70 : x
  2. Step 2: Convert to fraction form
    18,074.79/27,109.62 = 6,986.70/x
  3. Step 3: Cross multiply
    18,074.79x = 27,109.62 × 6,986.70
  4. Step 4: Simplify right side
    18,074.79x = 189,406,782.05
  5. Step 5: Solve for x
    x = 189,406,782.05/18,074.79
  6. Step 6: Final answer
    x = 10,479.06

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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.