Home / 11,633.15-17,443.09-7,939.85

Finding the Fourth Proportional to 11,633.15, 17,443.09 and 7,939.85

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Solution

The fourth proportional to 11,633.15, 17,443.09 and 7,939.85 is: 11,905.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,633.15 : 17,443.09 = 7,939.85 : x
  2. Step 2: Convert to fraction form
    11,633.15/17,443.09 = 7,939.85/x
  3. Step 3: Cross multiply
    11,633.15x = 17,443.09 × 7,939.85
  4. Step 4: Simplify right side
    11,633.15x = 138,495,411.07
  5. Step 5: Solve for x
    x = 138,495,411.07/11,633.15
  6. Step 6: Final answer
    x = 11,905.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.