Home / 17,811.14-24,582.77-12,720.47

Finding the Fourth Proportional to 17,811.14, 24,582.77 and 12,720.47

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Solution

The fourth proportional to 17,811.14, 24,582.77 and 12,720.47 is: 17,556.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.14 : 24,582.77 = 12,720.47 : x
  2. Step 2: Convert to fraction form
    17,811.14/24,582.77 = 12,720.47/x
  3. Step 3: Cross multiply
    17,811.14x = 24,582.77 × 12,720.47
  4. Step 4: Simplify right side
    17,811.14x = 312,704,201.79
  5. Step 5: Solve for x
    x = 312,704,201.79/17,811.14
  6. Step 6: Final answer
    x = 17,556.67

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1.5x scale

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.