Home / 18,278.63-27,418.08-4,427.63

Finding the Fourth Proportional to 18,278.63, 27,418.08 and 4,427.63

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Solution

The fourth proportional to 18,278.63, 27,418.08 and 4,427.63 is: 6,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.63 : 27,418.08 = 4,427.63 : x
  2. Step 2: Convert to fraction form
    18,278.63/27,418.08 = 4,427.63/x
  3. Step 3: Cross multiply
    18,278.63x = 27,418.08 × 4,427.63
  4. Step 4: Simplify right side
    18,278.63x = 121,396,976.46
  5. Step 5: Solve for x
    x = 121,396,976.46/18,278.63
  6. Step 6: Final answer
    x = 6,641.47

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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.