Home / 17,857.65-26,742.74-12,579.69

Finding the Fourth Proportional to 17,857.65, 26,742.74 and 12,579.69

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Solution

The fourth proportional to 17,857.65, 26,742.74 and 12,579.69 is: 18,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.65 : 26,742.74 = 12,579.69 : x
  2. Step 2: Convert to fraction form
    17,857.65/26,742.74 = 12,579.69/x
  3. Step 3: Cross multiply
    17,857.65x = 26,742.74 × 12,579.69
  4. Step 4: Simplify right side
    17,857.65x = 336,415,316.05
  5. Step 5: Solve for x
    x = 336,415,316.05/17,857.65
  6. Step 6: Final answer
    x = 18,838.72

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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.