Home / 13,375.39-18,457.03-7,324.30

Finding the Fourth Proportional to 13,375.39, 18,457.03 and 7,324.30

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Solution

The fourth proportional to 13,375.39, 18,457.03 and 7,324.30 is: 10,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.39 : 18,457.03 = 7,324.30 : x
  2. Step 2: Convert to fraction form
    13,375.39/18,457.03 = 7,324.30/x
  3. Step 3: Cross multiply
    13,375.39x = 18,457.03 × 7,324.30
  4. Step 4: Simplify right side
    13,375.39x = 135,184,788.21
  5. Step 5: Solve for x
    x = 135,184,788.21/13,375.39
  6. Step 6: Final answer
    x = 10,106.98

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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.