Home / 14,272.25-19,682.87-11,890.13

Finding the Fourth Proportional to 14,272.25, 19,682.87 and 11,890.13

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Solution

The fourth proportional to 14,272.25, 19,682.87 and 11,890.13 is: 16,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.25 : 19,682.87 = 11,890.13 : x
  2. Step 2: Convert to fraction form
    14,272.25/19,682.87 = 11,890.13/x
  3. Step 3: Cross multiply
    14,272.25x = 19,682.87 × 11,890.13
  4. Step 4: Simplify right side
    14,272.25x = 234,031,725.21
  5. Step 5: Solve for x
    x = 234,031,725.21/14,272.25
  6. Step 6: Final answer
    x = 16,397.68

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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.