Home / 13,400.05-18,492.68-7,431.36

Finding the Fourth Proportional to 13,400.05, 18,492.68 and 7,431.36

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Solution

The fourth proportional to 13,400.05, 18,492.68 and 7,431.36 is: 10,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.05 : 18,492.68 = 7,431.36 : x
  2. Step 2: Convert to fraction form
    13,400.05/18,492.68 = 7,431.36/x
  3. Step 3: Cross multiply
    13,400.05x = 18,492.68 × 7,431.36
  4. Step 4: Simplify right side
    13,400.05x = 137,425,716.78
  5. Step 5: Solve for x
    x = 137,425,716.78/13,400.05
  6. Step 6: Final answer
    x = 10,255.62

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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.