Home / 13,423.26-20,130.84-5,630.34

Finding the Fourth Proportional to 13,423.26, 20,130.84 and 5,630.34

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Solution

The fourth proportional to 13,423.26, 20,130.84 and 5,630.34 is: 8,443.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.26 : 20,130.84 = 5,630.34 : x
  2. Step 2: Convert to fraction form
    13,423.26/20,130.84 = 5,630.34/x
  3. Step 3: Cross multiply
    13,423.26x = 20,130.84 × 5,630.34
  4. Step 4: Simplify right side
    13,423.26x = 113,343,473.69
  5. Step 5: Solve for x
    x = 113,343,473.69/13,423.26
  6. Step 6: Final answer
    x = 8,443.81

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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.