Home / 14,215.29-21,310.80-5,456.49

Finding the Fourth Proportional to 14,215.29, 21,310.80 and 5,456.49

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Solution

The fourth proportional to 14,215.29, 21,310.80 and 5,456.49 is: 8,180.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.29 : 21,310.80 = 5,456.49 : x
  2. Step 2: Convert to fraction form
    14,215.29/21,310.80 = 5,456.49/x
  3. Step 3: Cross multiply
    14,215.29x = 21,310.80 × 5,456.49
  4. Step 4: Simplify right side
    14,215.29x = 116,282,167.09
  5. Step 5: Solve for x
    x = 116,282,167.09/14,215.29
  6. Step 6: Final answer
    x = 8,180.08

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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.