Home / 14,109.45-21,138.21-8,843.46

Finding the Fourth Proportional to 14,109.45, 21,138.21 and 8,843.46

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Solution

The fourth proportional to 14,109.45, 21,138.21 and 8,843.46 is: 13,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.45 : 21,138.21 = 8,843.46 : x
  2. Step 2: Convert to fraction form
    14,109.45/21,138.21 = 8,843.46/x
  3. Step 3: Cross multiply
    14,109.45x = 21,138.21 × 8,843.46
  4. Step 4: Simplify right side
    14,109.45x = 186,934,914.61
  5. Step 5: Solve for x
    x = 186,934,914.61/14,109.45
  6. Step 6: Final answer
    x = 13,248.92

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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.