Home / 8,115.93-11,199.90-4,579.16

Finding the Fourth Proportional to 8,115.93, 11,199.90 and 4,579.16

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Solution

The fourth proportional to 8,115.93, 11,199.90 and 4,579.16 is: 6,319.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.93 : 11,199.90 = 4,579.16 : x
  2. Step 2: Convert to fraction form
    8,115.93/11,199.90 = 4,579.16/x
  3. Step 3: Cross multiply
    8,115.93x = 11,199.90 × 4,579.16
  4. Step 4: Simplify right side
    8,115.93x = 51,286,106.08
  5. Step 5: Solve for x
    x = 51,286,106.08/8,115.93
  6. Step 6: Final answer
    x = 6,319.19

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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.