Home / 13,366.38-18,403.34-11,771.90

Finding the Fourth Proportional to 13,366.38, 18,403.34 and 11,771.90

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Solution

The fourth proportional to 13,366.38, 18,403.34 and 11,771.90 is: 16,208.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.38 : 18,403.34 = 11,771.90 : x
  2. Step 2: Convert to fraction form
    13,366.38/18,403.34 = 11,771.90/x
  3. Step 3: Cross multiply
    13,366.38x = 18,403.34 × 11,771.90
  4. Step 4: Simplify right side
    13,366.38x = 216,642,278.15
  5. Step 5: Solve for x
    x = 216,642,278.15/13,366.38
  6. Step 6: Final answer
    x = 16,208.00

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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.