Home / 18,826.73-25,980.65-10,212.78

Finding the Fourth Proportional to 18,826.73, 25,980.65 and 10,212.78

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Solution

The fourth proportional to 18,826.73, 25,980.65 and 10,212.78 is: 14,093.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.73 : 25,980.65 = 10,212.78 : x
  2. Step 2: Convert to fraction form
    18,826.73/25,980.65 = 10,212.78/x
  3. Step 3: Cross multiply
    18,826.73x = 25,980.65 × 10,212.78
  4. Step 4: Simplify right side
    18,826.73x = 265,334,747.37
  5. Step 5: Solve for x
    x = 265,334,747.37/18,826.73
  6. Step 6: Final answer
    x = 14,093.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.