Home / 18,738.54-25,858.86-10,240.47

Finding the Fourth Proportional to 18,738.54, 25,858.86 and 10,240.47

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Solution

The fourth proportional to 18,738.54, 25,858.86 and 10,240.47 is: 14,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.54 : 25,858.86 = 10,240.47 : x
  2. Step 2: Convert to fraction form
    18,738.54/25,858.86 = 10,240.47/x
  3. Step 3: Cross multiply
    18,738.54x = 25,858.86 × 10,240.47
  4. Step 4: Simplify right side
    18,738.54x = 264,806,880.06
  5. Step 5: Solve for x
    x = 264,806,880.06/18,738.54
  6. Step 6: Final answer
    x = 14,131.67

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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.