Home / 14,178.52-21,267.78-3,790

Finding the Fourth Proportional to 14,178.52, 21,267.78 and 3,790

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Solution

The fourth proportional to 14,178.52, 21,267.78 and 3,790 is: 5,685

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.52 : 21,267.78 = 3,790 : x
  2. Step 2: Convert to fraction form
    14,178.52/21,267.78 = 3,790/x
  3. Step 3: Cross multiply
    14,178.52x = 21,267.78 × 3,790
  4. Step 4: Simplify right side
    14,178.52x = 80,604,886.20
  5. Step 5: Solve for x
    x = 80,604,886.20/14,178.52
  6. Step 6: Final answer
    x = 5,685

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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.