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Finding the Fourth Proportional to 18,228.51, 27,342.77 and 4,377.51

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Solution

The fourth proportional to 18,228.51, 27,342.77 and 4,377.51 is: 6,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.51 : 27,342.77 = 4,377.51 : x
  2. Step 2: Convert to fraction form
    18,228.51/27,342.77 = 4,377.51/x
  3. Step 3: Cross multiply
    18,228.51x = 27,342.77 × 4,377.51
  4. Step 4: Simplify right side
    18,228.51x = 119,693,227.22
  5. Step 5: Solve for x
    x = 119,693,227.22/18,228.51
  6. Step 6: Final answer
    x = 6,566.27

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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.