Home / 13,591.21-18,740.67-8,549.26

Finding the Fourth Proportional to 13,591.21, 18,740.67 and 8,549.26

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Solution

The fourth proportional to 13,591.21, 18,740.67 and 8,549.26 is: 11,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.21 : 18,740.67 = 8,549.26 : x
  2. Step 2: Convert to fraction form
    13,591.21/18,740.67 = 8,549.26/x
  3. Step 3: Cross multiply
    13,591.21x = 18,740.67 × 8,549.26
  4. Step 4: Simplify right side
    13,591.21x = 160,218,860.40
  5. Step 5: Solve for x
    x = 160,218,860.40/13,591.21
  6. Step 6: Final answer
    x = 11,788.42

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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.