Home / 19,997.21-27,596.36-11,503.55

Finding the Fourth Proportional to 19,997.21, 27,596.36 and 11,503.55

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Solution

The fourth proportional to 19,997.21, 27,596.36 and 11,503.55 is: 15,875.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.21 : 27,596.36 = 11,503.55 : x
  2. Step 2: Convert to fraction form
    19,997.21/27,596.36 = 11,503.55/x
  3. Step 3: Cross multiply
    19,997.21x = 27,596.36 × 11,503.55
  4. Step 4: Simplify right side
    19,997.21x = 317,455,997.86
  5. Step 5: Solve for x
    x = 317,455,997.86/19,997.21
  6. Step 6: Final answer
    x = 15,875.02

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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.