Home / 10,108.45-13,949.36-5,631.93

Finding the Fourth Proportional to 10,108.45, 13,949.36 and 5,631.93

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Solution

The fourth proportional to 10,108.45, 13,949.36 and 5,631.93 is: 7,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.45 : 13,949.36 = 5,631.93 : x
  2. Step 2: Convert to fraction form
    10,108.45/13,949.36 = 5,631.93/x
  3. Step 3: Cross multiply
    10,108.45x = 13,949.36 × 5,631.93
  4. Step 4: Simplify right side
    10,108.45x = 78,561,749.32
  5. Step 5: Solve for x
    x = 78,561,749.32/10,108.45
  6. Step 6: Final answer
    x = 7,771.89

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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.