Home / 18,763.23-28,152.60-8,227.80

Finding the Fourth Proportional to 18,763.23, 28,152.60 and 8,227.80

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Solution

The fourth proportional to 18,763.23, 28,152.60 and 8,227.80 is: 12,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.23 : 28,152.60 = 8,227.80 : x
  2. Step 2: Convert to fraction form
    18,763.23/28,152.60 = 8,227.80/x
  3. Step 3: Cross multiply
    18,763.23x = 28,152.60 × 8,227.80
  4. Step 4: Simplify right side
    18,763.23x = 231,633,962.28
  5. Step 5: Solve for x
    x = 231,633,962.28/18,763.23
  6. Step 6: Final answer
    x = 12,345.10

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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.