Home / 19,511.02-26,917.96-12,800.38

Finding the Fourth Proportional to 19,511.02, 26,917.96 and 12,800.38

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Solution

The fourth proportional to 19,511.02, 26,917.96 and 12,800.38 is: 17,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.02 : 26,917.96 = 12,800.38 : x
  2. Step 2: Convert to fraction form
    19,511.02/26,917.96 = 12,800.38/x
  3. Step 3: Cross multiply
    19,511.02x = 26,917.96 × 12,800.38
  4. Step 4: Simplify right side
    19,511.02x = 344,560,116.82
  5. Step 5: Solve for x
    x = 344,560,116.82/19,511.02
  6. Step 6: Final answer
    x = 17,659.77

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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.