Home / 8,080.56-12,115.08-3,146.16

Finding the Fourth Proportional to 8,080.56, 12,115.08 and 3,146.16

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Solution

The fourth proportional to 8,080.56, 12,115.08 and 3,146.16 is: 4,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.56 : 12,115.08 = 3,146.16 : x
  2. Step 2: Convert to fraction form
    8,080.56/12,115.08 = 3,146.16/x
  3. Step 3: Cross multiply
    8,080.56x = 12,115.08 × 3,146.16
  4. Step 4: Simplify right side
    8,080.56x = 38,115,980.09
  5. Step 5: Solve for x
    x = 38,115,980.09/8,080.56
  6. Step 6: Final answer
    x = 4,717.00

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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.