Home / 14,043.21-19,378.76-7,755.72

Finding the Fourth Proportional to 14,043.21, 19,378.76 and 7,755.72

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Solution

The fourth proportional to 14,043.21, 19,378.76 and 7,755.72 is: 10,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.21 : 19,378.76 = 7,755.72 : x
  2. Step 2: Convert to fraction form
    14,043.21/19,378.76 = 7,755.72/x
  3. Step 3: Cross multiply
    14,043.21x = 19,378.76 × 7,755.72
  4. Step 4: Simplify right side
    14,043.21x = 150,296,197.73
  5. Step 5: Solve for x
    x = 150,296,197.73/14,043.21
  6. Step 6: Final answer
    x = 10,702.41

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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.