Home / 13,433.80-18,520.48-11,334.28

Finding the Fourth Proportional to 13,433.80, 18,520.48 and 11,334.28

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Solution

The fourth proportional to 13,433.80, 18,520.48 and 11,334.28 is: 15,625.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.80 : 18,520.48 = 11,334.28 : x
  2. Step 2: Convert to fraction form
    13,433.80/18,520.48 = 11,334.28/x
  3. Step 3: Cross multiply
    13,433.80x = 18,520.48 × 11,334.28
  4. Step 4: Simplify right side
    13,433.80x = 209,916,306.05
  5. Step 5: Solve for x
    x = 209,916,306.05/13,433.80
  6. Step 6: Final answer
    x = 15,625.98

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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.