Home / 16,890.31-23,312.37-11,234.89

Finding the Fourth Proportional to 16,890.31, 23,312.37 and 11,234.89

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Solution

The fourth proportional to 16,890.31, 23,312.37 and 11,234.89 is: 15,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.31 : 23,312.37 = 11,234.89 : x
  2. Step 2: Convert to fraction form
    16,890.31/23,312.37 = 11,234.89/x
  3. Step 3: Cross multiply
    16,890.31x = 23,312.37 × 11,234.89
  4. Step 4: Simplify right side
    16,890.31x = 261,911,912.59
  5. Step 5: Solve for x
    x = 261,911,912.59/16,890.31
  6. Step 6: Final answer
    x = 15,506.64

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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.