Home / 13,043.20-17,992.67-7,940.27

Finding the Fourth Proportional to 13,043.20, 17,992.67 and 7,940.27

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Solution

The fourth proportional to 13,043.20, 17,992.67 and 7,940.27 is: 10,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.20 : 17,992.67 = 7,940.27 : x
  2. Step 2: Convert to fraction form
    13,043.20/17,992.67 = 7,940.27/x
  3. Step 3: Cross multiply
    13,043.20x = 17,992.67 × 7,940.27
  4. Step 4: Simplify right side
    13,043.20x = 142,866,528.16
  5. Step 5: Solve for x
    x = 142,866,528.16/13,043.20
  6. Step 6: Final answer
    x = 10,953.34

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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.