Home / 15,904.44-21,955.20-12,127.86

Finding the Fourth Proportional to 15,904.44, 21,955.20 and 12,127.86

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Solution

The fourth proportional to 15,904.44, 21,955.20 and 12,127.86 is: 16,741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.44 : 21,955.20 = 12,127.86 : x
  2. Step 2: Convert to fraction form
    15,904.44/21,955.20 = 12,127.86/x
  3. Step 3: Cross multiply
    15,904.44x = 21,955.20 × 12,127.86
  4. Step 4: Simplify right side
    15,904.44x = 266,269,591.87
  5. Step 5: Solve for x
    x = 266,269,591.87/15,904.44
  6. Step 6: Final answer
    x = 16,741.84

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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.