Home / 7,885.63-11,818.36-4,189.60

Finding the Fourth Proportional to 7,885.63, 11,818.36 and 4,189.60

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Solution

The fourth proportional to 7,885.63, 11,818.36 and 4,189.60 is: 6,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.63 : 11,818.36 = 4,189.60 : x
  2. Step 2: Convert to fraction form
    7,885.63/11,818.36 = 4,189.60/x
  3. Step 3: Cross multiply
    7,885.63x = 11,818.36 × 4,189.60
  4. Step 4: Simplify right side
    7,885.63x = 49,514,201.06
  5. Step 5: Solve for x
    x = 49,514,201.06/7,885.63
  6. Step 6: Final answer
    x = 6,279.04

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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.