Home / 13,556.49-20,340.92-8,020.68

Finding the Fourth Proportional to 13,556.49, 20,340.92 and 8,020.68

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Solution

The fourth proportional to 13,556.49, 20,340.92 and 8,020.68 is: 12,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.49 : 20,340.92 = 8,020.68 : x
  2. Step 2: Convert to fraction form
    13,556.49/20,340.92 = 8,020.68/x
  3. Step 3: Cross multiply
    13,556.49x = 20,340.92 × 8,020.68
  4. Step 4: Simplify right side
    13,556.49x = 163,148,010.23
  5. Step 5: Solve for x
    x = 163,148,010.23/13,556.49
  6. Step 6: Final answer
    x = 12,034.68

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1.5x scale

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.