Home / 13,262.15-19,891.20-3,899.96

Finding the Fourth Proportional to 13,262.15, 19,891.20 and 3,899.96

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Solution

The fourth proportional to 13,262.15, 19,891.20 and 3,899.96 is: 5,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.15 : 19,891.20 = 3,899.96 : x
  2. Step 2: Convert to fraction form
    13,262.15/19,891.20 = 3,899.96/x
  3. Step 3: Cross multiply
    13,262.15x = 19,891.20 × 3,899.96
  4. Step 4: Simplify right side
    13,262.15x = 77,574,884.35
  5. Step 5: Solve for x
    x = 77,574,884.35/13,262.15
  6. Step 6: Final answer
    x = 5,849.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.