Home / 18,997.12-26,222.30-11,925.82

Finding the Fourth Proportional to 18,997.12, 26,222.30 and 11,925.82

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Solution

The fourth proportional to 18,997.12, 26,222.30 and 11,925.82 is: 16,461.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.12 : 26,222.30 = 11,925.82 : x
  2. Step 2: Convert to fraction form
    18,997.12/26,222.30 = 11,925.82/x
  3. Step 3: Cross multiply
    18,997.12x = 26,222.30 × 11,925.82
  4. Step 4: Simplify right side
    18,997.12x = 312,722,429.79
  5. Step 5: Solve for x
    x = 312,722,429.79/18,997.12
  6. Step 6: Final answer
    x = 16,461.57

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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.