Home / 19,659.30-27,132.08-11,701.55

Finding the Fourth Proportional to 19,659.30, 27,132.08 and 11,701.55

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Solution

The fourth proportional to 19,659.30, 27,132.08 and 11,701.55 is: 16,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.30 : 27,132.08 = 11,701.55 : x
  2. Step 2: Convert to fraction form
    19,659.30/27,132.08 = 11,701.55/x
  3. Step 3: Cross multiply
    19,659.30x = 27,132.08 × 11,701.55
  4. Step 4: Simplify right side
    19,659.30x = 317,487,390.72
  5. Step 5: Solve for x
    x = 317,487,390.72/19,659.30
  6. Step 6: Final answer
    x = 16,149.48

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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.