Home / 11,828.48-16,330.20-7,855.04

Finding the Fourth Proportional to 11,828.48, 16,330.20 and 7,855.04

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Solution

The fourth proportional to 11,828.48, 16,330.20 and 7,855.04 is: 10,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.48 : 16,330.20 = 7,855.04 : x
  2. Step 2: Convert to fraction form
    11,828.48/16,330.20 = 7,855.04/x
  3. Step 3: Cross multiply
    11,828.48x = 16,330.20 × 7,855.04
  4. Step 4: Simplify right side
    11,828.48x = 128,274,374.21
  5. Step 5: Solve for x
    x = 128,274,374.21/11,828.48
  6. Step 6: Final answer
    x = 10,844.54

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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.