Home / 19,702.56-27,189.60-11,748.36

Finding the Fourth Proportional to 19,702.56, 27,189.60 and 11,748.36

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Solution

The fourth proportional to 19,702.56, 27,189.60 and 11,748.36 is: 16,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.56 : 27,189.60 = 11,748.36 : x
  2. Step 2: Convert to fraction form
    19,702.56/27,189.60 = 11,748.36/x
  3. Step 3: Cross multiply
    19,702.56x = 27,189.60 × 11,748.36
  4. Step 4: Simplify right side
    19,702.56x = 319,433,209.06
  5. Step 5: Solve for x
    x = 319,433,209.06/19,702.56
  6. Step 6: Final answer
    x = 16,212.78

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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.