Home / 18,626.07-27,939.61-5,478.86

Finding the Fourth Proportional to 18,626.07, 27,939.61 and 5,478.86

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Solution

The fourth proportional to 18,626.07, 27,939.61 and 5,478.86 is: 8,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.07 : 27,939.61 = 5,478.86 : x
  2. Step 2: Convert to fraction form
    18,626.07/27,939.61 = 5,478.86/x
  3. Step 3: Cross multiply
    18,626.07x = 27,939.61 × 5,478.86
  4. Step 4: Simplify right side
    18,626.07x = 153,077,211.64
  5. Step 5: Solve for x
    x = 153,077,211.64/18,626.07
  6. Step 6: Final answer
    x = 8,218.44

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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.