Home / 14,438.51-21,664.95-8,109.47

Finding the Fourth Proportional to 14,438.51, 21,664.95 and 8,109.47

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Solution

The fourth proportional to 14,438.51, 21,664.95 and 8,109.47 is: 12,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.51 : 21,664.95 = 8,109.47 : x
  2. Step 2: Convert to fraction form
    14,438.51/21,664.95 = 8,109.47/x
  3. Step 3: Cross multiply
    14,438.51x = 21,664.95 × 8,109.47
  4. Step 4: Simplify right side
    14,438.51x = 175,691,153.75
  5. Step 5: Solve for x
    x = 175,691,153.75/14,438.51
  6. Step 6: Final answer
    x = 12,168.23

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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.