Home / 13,577.13-18,716.82-9,531.64

Finding the Fourth Proportional to 13,577.13, 18,716.82 and 9,531.64

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Solution

The fourth proportional to 13,577.13, 18,716.82 and 9,531.64 is: 13,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.13 : 18,716.82 = 9,531.64 : x
  2. Step 2: Convert to fraction form
    13,577.13/18,716.82 = 9,531.64/x
  3. Step 3: Cross multiply
    13,577.13x = 18,716.82 × 9,531.64
  4. Step 4: Simplify right side
    13,577.13x = 178,401,977.84
  5. Step 5: Solve for x
    x = 178,401,977.84/13,577.13
  6. Step 6: Final answer
    x = 13,139.89

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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.