Home / 13,399.41-18,492.08-7,431.33

Finding the Fourth Proportional to 13,399.41, 18,492.08 and 7,431.33

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Solution

The fourth proportional to 13,399.41, 18,492.08 and 7,431.33 is: 10,255.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.41 : 18,492.08 = 7,431.33 : x
  2. Step 2: Convert to fraction form
    13,399.41/18,492.08 = 7,431.33/x
  3. Step 3: Cross multiply
    13,399.41x = 18,492.08 × 7,431.33
  4. Step 4: Simplify right side
    13,399.41x = 137,420,711.71
  5. Step 5: Solve for x
    x = 137,420,711.71/13,399.41
  6. Step 6: Final answer
    x = 10,255.73

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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.