Home / 18,112.16-27,172.08-5,631.88

Finding the Fourth Proportional to 18,112.16, 27,172.08 and 5,631.88

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Solution

The fourth proportional to 18,112.16, 27,172.08 and 5,631.88 is: 8,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.16 : 27,172.08 = 5,631.88 : x
  2. Step 2: Convert to fraction form
    18,112.16/27,172.08 = 5,631.88/x
  3. Step 3: Cross multiply
    18,112.16x = 27,172.08 × 5,631.88
  4. Step 4: Simplify right side
    18,112.16x = 153,029,893.91
  5. Step 5: Solve for x
    x = 153,029,893.91/18,112.16
  6. Step 6: Final answer
    x = 8,449.01

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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.