Home / 18,975.27-28,467.54-8,986.86

Finding the Fourth Proportional to 18,975.27, 28,467.54 and 8,986.86

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Solution

The fourth proportional to 18,975.27, 28,467.54 and 8,986.86 is: 13,482.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.27 : 28,467.54 = 8,986.86 : x
  2. Step 2: Convert to fraction form
    18,975.27/28,467.54 = 8,986.86/x
  3. Step 3: Cross multiply
    18,975.27x = 28,467.54 × 8,986.86
  4. Step 4: Simplify right side
    18,975.27x = 255,833,796.52
  5. Step 5: Solve for x
    x = 255,833,796.52/18,975.27
  6. Step 6: Final answer
    x = 13,482.49

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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.