Home / 18,619.64-27,929.42-8,088.32

Finding the Fourth Proportional to 18,619.64, 27,929.42 and 8,088.32

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Solution

The fourth proportional to 18,619.64, 27,929.42 and 8,088.32 is: 12,132.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.64 : 27,929.42 = 8,088.32 : x
  2. Step 2: Convert to fraction form
    18,619.64/27,929.42 = 8,088.32/x
  3. Step 3: Cross multiply
    18,619.64x = 27,929.42 × 8,088.32
  4. Step 4: Simplify right side
    18,619.64x = 225,902,146.09
  5. Step 5: Solve for x
    x = 225,902,146.09/18,619.64
  6. Step 6: Final answer
    x = 12,132.47

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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.