Home / 11,702.88-17,554.32-5,128.92

Finding the Fourth Proportional to 11,702.88, 17,554.32 and 5,128.92

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Solution

The fourth proportional to 11,702.88, 17,554.32 and 5,128.92 is: 7,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,702.88 : 17,554.32 = 5,128.92 : x
  2. Step 2: Convert to fraction form
    11,702.88/17,554.32 = 5,128.92/x
  3. Step 3: Cross multiply
    11,702.88x = 17,554.32 × 5,128.92
  4. Step 4: Simplify right side
    11,702.88x = 90,034,702.93
  5. Step 5: Solve for x
    x = 90,034,702.93/11,702.88
  6. Step 6: Final answer
    x = 7,693.38

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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.