Home / 13,613.22-20,421.78-4,846.05

Finding the Fourth Proportional to 13,613.22, 20,421.78 and 4,846.05

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Solution

The fourth proportional to 13,613.22, 20,421.78 and 4,846.05 is: 7,269.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.22 : 20,421.78 = 4,846.05 : x
  2. Step 2: Convert to fraction form
    13,613.22/20,421.78 = 4,846.05/x
  3. Step 3: Cross multiply
    13,613.22x = 20,421.78 × 4,846.05
  4. Step 4: Simplify right side
    13,613.22x = 98,964,966.97
  5. Step 5: Solve for x
    x = 98,964,966.97/13,613.22
  6. Step 6: Final answer
    x = 7,269.77

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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.