Home / 18,148.71-27,218.16-4,997.91

Finding the Fourth Proportional to 18,148.71, 27,218.16 and 4,997.91

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Solution

The fourth proportional to 18,148.71, 27,218.16 and 4,997.91 is: 7,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.71 : 27,218.16 = 4,997.91 : x
  2. Step 2: Convert to fraction form
    18,148.71/27,218.16 = 4,997.91/x
  3. Step 3: Cross multiply
    18,148.71x = 27,218.16 × 4,997.91
  4. Step 4: Simplify right side
    18,148.71x = 136,033,914.05
  5. Step 5: Solve for x
    x = 136,033,914.05/18,148.71
  6. Step 6: Final answer
    x = 7,495.51

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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.