Home / 13,328.14-19,987.04-4,441.75

Finding the Fourth Proportional to 13,328.14, 19,987.04 and 4,441.75

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Solution

The fourth proportional to 13,328.14, 19,987.04 and 4,441.75 is: 6,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.14 : 19,987.04 = 4,441.75 : x
  2. Step 2: Convert to fraction form
    13,328.14/19,987.04 = 4,441.75/x
  3. Step 3: Cross multiply
    13,328.14x = 19,987.04 × 4,441.75
  4. Step 4: Simplify right side
    13,328.14x = 88,777,368.73
  5. Step 5: Solve for x
    x = 88,777,368.73/13,328.14
  6. Step 6: Final answer
    x = 6,660.90

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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.