Home / 14,634.88-20,196.18-7,920.58

Finding the Fourth Proportional to 14,634.88, 20,196.18 and 7,920.58

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Solution

The fourth proportional to 14,634.88, 20,196.18 and 7,920.58 is: 10,930.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,634.88 : 20,196.18 = 7,920.58 : x
  2. Step 2: Convert to fraction form
    14,634.88/20,196.18 = 7,920.58/x
  3. Step 3: Cross multiply
    14,634.88x = 20,196.18 × 7,920.58
  4. Step 4: Simplify right side
    14,634.88x = 159,965,459.38
  5. Step 5: Solve for x
    x = 159,965,459.38/14,634.88
  6. Step 6: Final answer
    x = 10,930.43

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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.