Home / 13,401.15-18,493.45-7,432.80

Finding the Fourth Proportional to 13,401.15, 18,493.45 and 7,432.80

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Solution

The fourth proportional to 13,401.15, 18,493.45 and 7,432.80 is: 10,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.15 : 18,493.45 = 7,432.80 : x
  2. Step 2: Convert to fraction form
    13,401.15/18,493.45 = 7,432.80/x
  3. Step 3: Cross multiply
    13,401.15x = 18,493.45 × 7,432.80
  4. Step 4: Simplify right side
    13,401.15x = 137,458,027.23
  5. Step 5: Solve for x
    x = 137,458,027.23/13,401.15
  6. Step 6: Final answer
    x = 10,257.18

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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.