Home / 11,828.73-16,330.55-7,855.29

Finding the Fourth Proportional to 11,828.73, 16,330.55 and 7,855.29

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Solution

The fourth proportional to 11,828.73, 16,330.55 and 7,855.29 is: 10,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.73 : 16,330.55 = 7,855.29 : x
  2. Step 2: Convert to fraction form
    11,828.73/16,330.55 = 7,855.29/x
  3. Step 3: Cross multiply
    11,828.73x = 16,330.55 × 7,855.29
  4. Step 4: Simplify right side
    11,828.73x = 128,281,166.83
  5. Step 5: Solve for x
    x = 128,281,166.83/11,828.73
  6. Step 6: Final answer
    x = 10,844.88

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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.