Home / 15,556.56-21,451.08-10,512

Finding the Fourth Proportional to 15,556.56, 21,451.08 and 10,512

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Solution

The fourth proportional to 15,556.56, 21,451.08 and 10,512 is: 14,495.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.56 : 21,451.08 = 10,512 : x
  2. Step 2: Convert to fraction form
    15,556.56/21,451.08 = 10,512/x
  3. Step 3: Cross multiply
    15,556.56x = 21,451.08 × 10,512
  4. Step 4: Simplify right side
    15,556.56x = 225,493,752.96
  5. Step 5: Solve for x
    x = 225,493,752.96/15,556.56
  6. Step 6: Final answer
    x = 14,495.09

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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.