Home / 13,401.11-18,493.65-7,432.90

Finding the Fourth Proportional to 13,401.11, 18,493.65 and 7,432.90

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Solution

The fourth proportional to 13,401.11, 18,493.65 and 7,432.90 is: 10,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.11 : 18,493.65 = 7,432.90 : x
  2. Step 2: Convert to fraction form
    13,401.11/18,493.65 = 7,432.90/x
  3. Step 3: Cross multiply
    13,401.11x = 18,493.65 × 7,432.90
  4. Step 4: Simplify right side
    13,401.11x = 137,461,404.85
  5. Step 5: Solve for x
    x = 137,461,404.85/13,401.11
  6. Step 6: Final answer
    x = 10,257.46

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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.