Home / 13,209.19-19,838.46-11,628.47

Finding the Fourth Proportional to 13,209.19, 19,838.46 and 11,628.47

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Solution

The fourth proportional to 13,209.19, 19,838.46 and 11,628.47 is: 17,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.19 : 19,838.46 = 11,628.47 : x
  2. Step 2: Convert to fraction form
    13,209.19/19,838.46 = 11,628.47/x
  3. Step 3: Cross multiply
    13,209.19x = 19,838.46 × 11,628.47
  4. Step 4: Simplify right side
    13,209.19x = 230,690,936.96
  5. Step 5: Solve for x
    x = 230,690,936.96/13,209.19
  6. Step 6: Final answer
    x = 17,464.43

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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.