Home / 13,170.22-19,752.40-3,808.20

Finding the Fourth Proportional to 13,170.22, 19,752.40 and 3,808.20

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Solution

The fourth proportional to 13,170.22, 19,752.40 and 3,808.20 is: 5,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.22 : 19,752.40 = 3,808.20 : x
  2. Step 2: Convert to fraction form
    13,170.22/19,752.40 = 3,808.20/x
  3. Step 3: Cross multiply
    13,170.22x = 19,752.40 × 3,808.20
  4. Step 4: Simplify right side
    13,170.22x = 75,221,089.68
  5. Step 5: Solve for x
    x = 75,221,089.68/13,170.22
  6. Step 6: Final answer
    x = 5,711.45

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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.