Home / 13,245.43-19,855.79-4,474.21

Finding the Fourth Proportional to 13,245.43, 19,855.79 and 4,474.21

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Solution

The fourth proportional to 13,245.43, 19,855.79 and 4,474.21 is: 6,707.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.43 : 19,855.79 = 4,474.21 : x
  2. Step 2: Convert to fraction form
    13,245.43/19,855.79 = 4,474.21/x
  3. Step 3: Cross multiply
    13,245.43x = 19,855.79 × 4,474.21
  4. Step 4: Simplify right side
    13,245.43x = 88,838,852.53
  5. Step 5: Solve for x
    x = 88,838,852.53/13,245.43
  6. Step 6: Final answer
    x = 6,707.13

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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.