Home / 13,286.70-19,894.41-7,426.62

Finding the Fourth Proportional to 13,286.70, 19,894.41 and 7,426.62

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Solution

The fourth proportional to 13,286.70, 19,894.41 and 7,426.62 is: 11,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.70 : 19,894.41 = 7,426.62 : x
  2. Step 2: Convert to fraction form
    13,286.70/19,894.41 = 7,426.62/x
  3. Step 3: Cross multiply
    13,286.70x = 19,894.41 × 7,426.62
  4. Step 4: Simplify right side
    13,286.70x = 147,748,223.19
  5. Step 5: Solve for x
    x = 147,748,223.19/13,286.70
  6. Step 6: Final answer
    x = 11,120.01

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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.