Home / 11,925.28-17,885.88-3,161.08

Finding the Fourth Proportional to 11,925.28, 17,885.88 and 3,161.08

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Solution

The fourth proportional to 11,925.28, 17,885.88 and 3,161.08 is: 4,741.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.28 : 17,885.88 = 3,161.08 : x
  2. Step 2: Convert to fraction form
    11,925.28/17,885.88 = 3,161.08/x
  3. Step 3: Cross multiply
    11,925.28x = 17,885.88 × 3,161.08
  4. Step 4: Simplify right side
    11,925.28x = 56,538,697.55
  5. Step 5: Solve for x
    x = 56,538,697.55/11,925.28
  6. Step 6: Final answer
    x = 4,741.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.