Home / 13,191.58-19,776.30-9,021.43

Finding the Fourth Proportional to 13,191.58, 19,776.30 and 9,021.43

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Solution

The fourth proportional to 13,191.58, 19,776.30 and 9,021.43 is: 13,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.58 : 19,776.30 = 9,021.43 : x
  2. Step 2: Convert to fraction form
    13,191.58/19,776.30 = 9,021.43/x
  3. Step 3: Cross multiply
    13,191.58x = 19,776.30 × 9,021.43
  4. Step 4: Simplify right side
    13,191.58x = 178,410,506.11
  5. Step 5: Solve for x
    x = 178,410,506.11/13,191.58
  6. Step 6: Final answer
    x = 13,524.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.