Home / 8,189.64-12,279.90-5,595.72

Finding the Fourth Proportional to 8,189.64, 12,279.90 and 5,595.72

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Solution

The fourth proportional to 8,189.64, 12,279.90 and 5,595.72 is: 8,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.64 : 12,279.90 = 5,595.72 : x
  2. Step 2: Convert to fraction form
    8,189.64/12,279.90 = 5,595.72/x
  3. Step 3: Cross multiply
    8,189.64x = 12,279.90 × 5,595.72
  4. Step 4: Simplify right side
    8,189.64x = 68,714,882.03
  5. Step 5: Solve for x
    x = 68,714,882.03/8,189.64
  6. Step 6: Final answer
    x = 8,390.46

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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.