Home / 19,171.98-26,451.17-11,615.90

Finding the Fourth Proportional to 19,171.98, 26,451.17 and 11,615.90

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Solution

The fourth proportional to 19,171.98, 26,451.17 and 11,615.90 is: 16,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.98 : 26,451.17 = 11,615.90 : x
  2. Step 2: Convert to fraction form
    19,171.98/26,451.17 = 11,615.90/x
  3. Step 3: Cross multiply
    19,171.98x = 26,451.17 × 11,615.90
  4. Step 4: Simplify right side
    19,171.98x = 307,253,955.27
  5. Step 5: Solve for x
    x = 307,253,955.27/19,171.98
  6. Step 6: Final answer
    x = 16,026.20

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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.