Home / 13,309.20-19,963.80-6,286.91

Finding the Fourth Proportional to 13,309.20, 19,963.80 and 6,286.91

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Solution

The fourth proportional to 13,309.20, 19,963.80 and 6,286.91 is: 9,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.20 : 19,963.80 = 6,286.91 : x
  2. Step 2: Convert to fraction form
    13,309.20/19,963.80 = 6,286.91/x
  3. Step 3: Cross multiply
    13,309.20x = 19,963.80 × 6,286.91
  4. Step 4: Simplify right side
    13,309.20x = 125,510,514.04
  5. Step 5: Solve for x
    x = 125,510,514.04/13,309.20
  6. Step 6: Final answer
    x = 9,430.36

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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.