Home / 10,878.58-16,295.91-7,171.66

Finding the Fourth Proportional to 10,878.58, 16,295.91 and 7,171.66

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Solution

The fourth proportional to 10,878.58, 16,295.91 and 7,171.66 is: 10,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.58 : 16,295.91 = 7,171.66 : x
  2. Step 2: Convert to fraction form
    10,878.58/16,295.91 = 7,171.66/x
  3. Step 3: Cross multiply
    10,878.58x = 16,295.91 × 7,171.66
  4. Step 4: Simplify right side
    10,878.58x = 116,868,725.91
  5. Step 5: Solve for x
    x = 116,868,725.91/10,878.58
  6. Step 6: Final answer
    x = 10,743.01

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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.