Home / 11,953.28-17,930.40-4,162.88

Finding the Fourth Proportional to 11,953.28, 17,930.40 and 4,162.88

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Solution

The fourth proportional to 11,953.28, 17,930.40 and 4,162.88 is: 6,244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.28 : 17,930.40 = 4,162.88 : x
  2. Step 2: Convert to fraction form
    11,953.28/17,930.40 = 4,162.88/x
  3. Step 3: Cross multiply
    11,953.28x = 17,930.40 × 4,162.88
  4. Step 4: Simplify right side
    11,953.28x = 74,642,103.55
  5. Step 5: Solve for x
    x = 74,642,103.55/11,953.28
  6. Step 6: Final answer
    x = 6,244.49

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1.5x scale

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.