Home / 12,512.07-18,754.61-8,132.67

Finding the Fourth Proportional to 12,512.07, 18,754.61 and 8,132.67

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Solution

The fourth proportional to 12,512.07, 18,754.61 and 8,132.67 is: 12,190.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.07 : 18,754.61 = 8,132.67 : x
  2. Step 2: Convert to fraction form
    12,512.07/18,754.61 = 8,132.67/x
  3. Step 3: Cross multiply
    12,512.07x = 18,754.61 × 8,132.67
  4. Step 4: Simplify right side
    12,512.07x = 152,525,013.45
  5. Step 5: Solve for x
    x = 152,525,013.45/12,512.07
  6. Step 6: Final answer
    x = 12,190.23

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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.