Home / 19,702.75-27,186.07-11,745.72

Finding the Fourth Proportional to 19,702.75, 27,186.07 and 11,745.72

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Solution

The fourth proportional to 19,702.75, 27,186.07 and 11,745.72 is: 16,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.75 : 27,186.07 = 11,745.72 : x
  2. Step 2: Convert to fraction form
    19,702.75/27,186.07 = 11,745.72/x
  3. Step 3: Cross multiply
    19,702.75x = 27,186.07 × 11,745.72
  4. Step 4: Simplify right side
    19,702.75x = 319,319,966.12
  5. Step 5: Solve for x
    x = 319,319,966.12/19,702.75
  6. Step 6: Final answer
    x = 16,206.87

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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.