Home / 10,272.50-14,176-5,556.68

Finding the Fourth Proportional to 10,272.50, 14,176 and 5,556.68

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Solution

The fourth proportional to 10,272.50, 14,176 and 5,556.68 is: 7,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.50 : 14,176 = 5,556.68 : x
  2. Step 2: Convert to fraction form
    10,272.50/14,176 = 5,556.68/x
  3. Step 3: Cross multiply
    10,272.50x = 14,176 × 5,556.68
  4. Step 4: Simplify right side
    10,272.50x = 78,771,495.68
  5. Step 5: Solve for x
    x = 78,771,495.68/10,272.50
  6. Step 6: Final answer
    x = 7,668.19

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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.