Home / 13,982.08-19,290.93-7,931.33

Finding the Fourth Proportional to 13,982.08, 19,290.93 and 7,931.33

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Solution

The fourth proportional to 13,982.08, 19,290.93 and 7,931.33 is: 10,942.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.08 : 19,290.93 = 7,931.33 : x
  2. Step 2: Convert to fraction form
    13,982.08/19,290.93 = 7,931.33/x
  3. Step 3: Cross multiply
    13,982.08x = 19,290.93 × 7,931.33
  4. Step 4: Simplify right side
    13,982.08x = 153,002,659.50
  5. Step 5: Solve for x
    x = 153,002,659.50/13,982.08
  6. Step 6: Final answer
    x = 10,942.77

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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.