Home / 13,948.88-20,923.32-5,186

Finding the Fourth Proportional to 13,948.88, 20,923.32 and 5,186

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Solution

The fourth proportional to 13,948.88, 20,923.32 and 5,186 is: 7,779

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.88 : 20,923.32 = 5,186 : x
  2. Step 2: Convert to fraction form
    13,948.88/20,923.32 = 5,186/x
  3. Step 3: Cross multiply
    13,948.88x = 20,923.32 × 5,186
  4. Step 4: Simplify right side
    13,948.88x = 108,508,337.52
  5. Step 5: Solve for x
    x = 108,508,337.52/13,948.88
  6. Step 6: Final answer
    x = 7,779

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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.