Home / 13,337.26-18,405.20-7,369.48

Finding the Fourth Proportional to 13,337.26, 18,405.20 and 7,369.48

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Solution

The fourth proportional to 13,337.26, 18,405.20 and 7,369.48 is: 10,169.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.26 : 18,405.20 = 7,369.48 : x
  2. Step 2: Convert to fraction form
    13,337.26/18,405.20 = 7,369.48/x
  3. Step 3: Cross multiply
    13,337.26x = 18,405.20 × 7,369.48
  4. Step 4: Simplify right side
    13,337.26x = 135,636,742.91
  5. Step 5: Solve for x
    x = 135,636,742.91/13,337.26
  6. Step 6: Final answer
    x = 10,169.76

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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.