Home / 13,982.42-19,293.59-8,315.21

Finding the Fourth Proportional to 13,982.42, 19,293.59 and 8,315.21

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Solution

The fourth proportional to 13,982.42, 19,293.59 and 8,315.21 is: 11,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.42 : 19,293.59 = 8,315.21 : x
  2. Step 2: Convert to fraction form
    13,982.42/19,293.59 = 8,315.21/x
  3. Step 3: Cross multiply
    13,982.42x = 19,293.59 × 8,315.21
  4. Step 4: Simplify right side
    13,982.42x = 160,430,213.00
  5. Step 5: Solve for x
    x = 160,430,213.00/13,982.42
  6. Step 6: Final answer
    x = 11,473.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.