Home / 19,657.21-27,122.71-11,697.88

Finding the Fourth Proportional to 19,657.21, 27,122.71 and 11,697.88

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Solution

The fourth proportional to 19,657.21, 27,122.71 and 11,697.88 is: 16,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.21 : 27,122.71 = 11,697.88 : x
  2. Step 2: Convert to fraction form
    19,657.21/27,122.71 = 11,697.88/x
  3. Step 3: Cross multiply
    19,657.21x = 27,122.71 × 11,697.88
  4. Step 4: Simplify right side
    19,657.21x = 317,278,206.85
  5. Step 5: Solve for x
    x = 317,278,206.85/19,657.21
  6. Step 6: Final answer
    x = 16,140.55

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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.