Home / 11,925.82-16,458.60-6,621.13

Finding the Fourth Proportional to 11,925.82, 16,458.60 and 6,621.13

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Solution

The fourth proportional to 11,925.82, 16,458.60 and 6,621.13 is: 9,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.82 : 16,458.60 = 6,621.13 : x
  2. Step 2: Convert to fraction form
    11,925.82/16,458.60 = 6,621.13/x
  3. Step 3: Cross multiply
    11,925.82x = 16,458.60 × 6,621.13
  4. Step 4: Simplify right side
    11,925.82x = 108,974,530.22
  5. Step 5: Solve for x
    x = 108,974,530.22/11,925.82
  6. Step 6: Final answer
    x = 9,137.70

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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.