Home / 11,914.04-16,435.50-9,678.44

Finding the Fourth Proportional to 11,914.04, 16,435.50 and 9,678.44

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Solution

The fourth proportional to 11,914.04, 16,435.50 and 9,678.44 is: 13,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,914.04 : 16,435.50 = 9,678.44 : x
  2. Step 2: Convert to fraction form
    11,914.04/16,435.50 = 9,678.44/x
  3. Step 3: Cross multiply
    11,914.04x = 16,435.50 × 9,678.44
  4. Step 4: Simplify right side
    11,914.04x = 159,070,000.62
  5. Step 5: Solve for x
    x = 159,070,000.62/11,914.04
  6. Step 6: Final answer
    x = 13,351.47

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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.