Home / 14,043.64-19,379.70-7,755.88

Finding the Fourth Proportional to 14,043.64, 19,379.70 and 7,755.88

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Solution

The fourth proportional to 14,043.64, 19,379.70 and 7,755.88 is: 10,702.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.64 : 19,379.70 = 7,755.88 : x
  2. Step 2: Convert to fraction form
    14,043.64/19,379.70 = 7,755.88/x
  3. Step 3: Cross multiply
    14,043.64x = 19,379.70 × 7,755.88
  4. Step 4: Simplify right side
    14,043.64x = 150,306,627.64
  5. Step 5: Solve for x
    x = 150,306,627.64/14,043.64
  6. Step 6: Final answer
    x = 10,702.83

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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.