Home / 18,785.01-28,180.26-5,638.42

Finding the Fourth Proportional to 18,785.01, 28,180.26 and 5,638.42

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Solution

The fourth proportional to 18,785.01, 28,180.26 and 5,638.42 is: 8,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.01 : 28,180.26 = 5,638.42 : x
  2. Step 2: Convert to fraction form
    18,785.01/28,180.26 = 5,638.42/x
  3. Step 3: Cross multiply
    18,785.01x = 28,180.26 × 5,638.42
  4. Step 4: Simplify right side
    18,785.01x = 158,892,071.14
  5. Step 5: Solve for x
    x = 158,892,071.14/18,785.01
  6. Step 6: Final answer
    x = 8,458.45

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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.