Home / 19,447.31-26,836.58-11,890.82

Finding the Fourth Proportional to 19,447.31, 26,836.58 and 11,890.82

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Solution

The fourth proportional to 19,447.31, 26,836.58 and 11,890.82 is: 16,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,447.31 : 26,836.58 = 11,890.82 : x
  2. Step 2: Convert to fraction form
    19,447.31/26,836.58 = 11,890.82/x
  3. Step 3: Cross multiply
    19,447.31x = 26,836.58 × 11,890.82
  4. Step 4: Simplify right side
    19,447.31x = 319,108,882.74
  5. Step 5: Solve for x
    x = 319,108,882.74/19,447.31
  6. Step 6: Final answer
    x = 16,408.90

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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.