Home / 13,401.23-18,493.81-7,432.99

Finding the Fourth Proportional to 13,401.23, 18,493.81 and 7,432.99

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Solution

The fourth proportional to 13,401.23, 18,493.81 and 7,432.99 is: 10,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.23 : 18,493.81 = 7,432.99 : x
  2. Step 2: Convert to fraction form
    13,401.23/18,493.81 = 7,432.99/x
  3. Step 3: Cross multiply
    13,401.23x = 18,493.81 × 7,432.99
  4. Step 4: Simplify right side
    13,401.23x = 137,464,239.97
  5. Step 5: Solve for x
    x = 137,464,239.97/13,401.23
  6. Step 6: Final answer
    x = 10,257.59

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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.