Home / 18,618.78-25,694.37-10,235.28

Finding the Fourth Proportional to 18,618.78, 25,694.37 and 10,235.28

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Solution

The fourth proportional to 18,618.78, 25,694.37 and 10,235.28 is: 14,124.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.78 : 25,694.37 = 10,235.28 : x
  2. Step 2: Convert to fraction form
    18,618.78/25,694.37 = 10,235.28/x
  3. Step 3: Cross multiply
    18,618.78x = 25,694.37 × 10,235.28
  4. Step 4: Simplify right side
    18,618.78x = 262,989,071.37
  5. Step 5: Solve for x
    x = 262,989,071.37/18,618.78
  6. Step 6: Final answer
    x = 14,124.94

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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.