Home / 11,678.93-16,117.40-6,644.03

Finding the Fourth Proportional to 11,678.93, 16,117.40 and 6,644.03

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Solution

The fourth proportional to 11,678.93, 16,117.40 and 6,644.03 is: 9,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.93 : 16,117.40 = 6,644.03 : x
  2. Step 2: Convert to fraction form
    11,678.93/16,117.40 = 6,644.03/x
  3. Step 3: Cross multiply
    11,678.93x = 16,117.40 × 6,644.03
  4. Step 4: Simplify right side
    11,678.93x = 107,084,489.12
  5. Step 5: Solve for x
    x = 107,084,489.12/11,678.93
  6. Step 6: Final answer
    x = 9,169.03

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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.