Home / 13,613.00-20,423.21-5,293.35

Finding the Fourth Proportional to 13,613.00, 20,423.21 and 5,293.35

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Solution

The fourth proportional to 13,613.00, 20,423.21 and 5,293.35 is: 7,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.00 : 20,423.21 = 5,293.35 : x
  2. Step 2: Convert to fraction form
    13,613.00/20,423.21 = 5,293.35/x
  3. Step 3: Cross multiply
    13,613.00x = 20,423.21 × 5,293.35
  4. Step 4: Simplify right side
    13,613.00x = 108,107,172.19
  5. Step 5: Solve for x
    x = 108,107,172.19/13,613.00
  6. Step 6: Final answer
    x = 7,941.47

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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.