Home / 18,378.45-25,362.23-10,826.31

Finding the Fourth Proportional to 18,378.45, 25,362.23 and 10,826.31

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Solution

The fourth proportional to 18,378.45, 25,362.23 and 10,826.31 is: 14,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.45 : 25,362.23 = 10,826.31 : x
  2. Step 2: Convert to fraction form
    18,378.45/25,362.23 = 10,826.31/x
  3. Step 3: Cross multiply
    18,378.45x = 25,362.23 × 10,826.31
  4. Step 4: Simplify right side
    18,378.45x = 274,579,466.15
  5. Step 5: Solve for x
    x = 274,579,466.15/18,378.45
  6. Step 6: Final answer
    x = 14,940.30

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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.