Home / 14,247.78-19,661.31-7,960.02

Finding the Fourth Proportional to 14,247.78, 19,661.31 and 7,960.02

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Solution

The fourth proportional to 14,247.78, 19,661.31 and 7,960.02 is: 10,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.78 : 19,661.31 = 7,960.02 : x
  2. Step 2: Convert to fraction form
    14,247.78/19,661.31 = 7,960.02/x
  3. Step 3: Cross multiply
    14,247.78x = 19,661.31 × 7,960.02
  4. Step 4: Simplify right side
    14,247.78x = 156,504,420.83
  5. Step 5: Solve for x
    x = 156,504,420.83/14,247.78
  6. Step 6: Final answer
    x = 10,984.48

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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.