Home / 8,115.56-11,199.35-4,579.91

Finding the Fourth Proportional to 8,115.56, 11,199.35 and 4,579.91

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Solution

The fourth proportional to 8,115.56, 11,199.35 and 4,579.91 is: 6,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.56 : 11,199.35 = 4,579.91 : x
  2. Step 2: Convert to fraction form
    8,115.56/11,199.35 = 4,579.91/x
  3. Step 3: Cross multiply
    8,115.56x = 11,199.35 × 4,579.91
  4. Step 4: Simplify right side
    8,115.56x = 51,291,936.16
  5. Step 5: Solve for x
    x = 51,291,936.16/8,115.56
  6. Step 6: Final answer
    x = 6,320.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.