Home / 12,511.76-18,755.49-6,960.02

Finding the Fourth Proportional to 12,511.76, 18,755.49 and 6,960.02

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Solution

The fourth proportional to 12,511.76, 18,755.49 and 6,960.02 is: 10,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.76 : 18,755.49 = 6,960.02 : x
  2. Step 2: Convert to fraction form
    12,511.76/18,755.49 = 6,960.02/x
  3. Step 3: Cross multiply
    12,511.76x = 18,755.49 × 6,960.02
  4. Step 4: Simplify right side
    12,511.76x = 130,538,585.51
  5. Step 5: Solve for x
    x = 130,538,585.51/12,511.76
  6. Step 6: Final answer
    x = 10,433.27

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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.