Home / 14,678.15-21,989.54-11,375.09

Finding the Fourth Proportional to 14,678.15, 21,989.54 and 11,375.09

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Solution

The fourth proportional to 14,678.15, 21,989.54 and 11,375.09 is: 17,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678.15 : 21,989.54 = 11,375.09 : x
  2. Step 2: Convert to fraction form
    14,678.15/21,989.54 = 11,375.09/x
  3. Step 3: Cross multiply
    14,678.15x = 21,989.54 × 11,375.09
  4. Step 4: Simplify right side
    14,678.15x = 250,132,996.56
  5. Step 5: Solve for x
    x = 250,132,996.56/14,678.15
  6. Step 6: Final answer
    x = 17,041.18

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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.