Home / 14,310.54-19,749.56-7,939.22

Finding the Fourth Proportional to 14,310.54, 19,749.56 and 7,939.22

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Solution

The fourth proportional to 14,310.54, 19,749.56 and 7,939.22 is: 10,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.54 : 19,749.56 = 7,939.22 : x
  2. Step 2: Convert to fraction form
    14,310.54/19,749.56 = 7,939.22/x
  3. Step 3: Cross multiply
    14,310.54x = 19,749.56 × 7,939.22
  4. Step 4: Simplify right side
    14,310.54x = 156,795,963.30
  5. Step 5: Solve for x
    x = 156,795,963.30/14,310.54
  6. Step 6: Final answer
    x = 10,956.68

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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.