Home / 13,540.62-20,315.80-9,199.02

Finding the Fourth Proportional to 13,540.62, 20,315.80 and 9,199.02

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Solution

The fourth proportional to 13,540.62, 20,315.80 and 9,199.02 is: 13,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.62 : 20,315.80 = 9,199.02 : x
  2. Step 2: Convert to fraction form
    13,540.62/20,315.80 = 9,199.02/x
  3. Step 3: Cross multiply
    13,540.62x = 20,315.80 × 9,199.02
  4. Step 4: Simplify right side
    13,540.62x = 186,885,450.52
  5. Step 5: Solve for x
    x = 186,885,450.52/13,540.62
  6. Step 6: Final answer
    x = 13,801.84

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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.