Home / 14,104.32-21,153-5,786.70

Finding the Fourth Proportional to 14,104.32, 21,153 and 5,786.70

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Solution

The fourth proportional to 14,104.32, 21,153 and 5,786.70 is: 8,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.32 : 21,153 = 5,786.70 : x
  2. Step 2: Convert to fraction form
    14,104.32/21,153 = 5,786.70/x
  3. Step 3: Cross multiply
    14,104.32x = 21,153 × 5,786.70
  4. Step 4: Simplify right side
    14,104.32x = 122,406,065.10
  5. Step 5: Solve for x
    x = 122,406,065.10/14,104.32
  6. Step 6: Final answer
    x = 8,678.62

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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.