Home / 11,925.67-16,455.68-6,620.53

Finding the Fourth Proportional to 11,925.67, 16,455.68 and 6,620.53

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Solution

The fourth proportional to 11,925.67, 16,455.68 and 6,620.53 is: 9,135.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.67 : 16,455.68 = 6,620.53 : x
  2. Step 2: Convert to fraction form
    11,925.67/16,455.68 = 6,620.53/x
  3. Step 3: Cross multiply
    11,925.67x = 16,455.68 × 6,620.53
  4. Step 4: Simplify right side
    11,925.67x = 108,945,290.01
  5. Step 5: Solve for x
    x = 108,945,290.01/11,925.67
  6. Step 6: Final answer
    x = 9,135.36

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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.