Home / 7,923.90-11,877.60-2,654.94

Finding the Fourth Proportional to 7,923.90, 11,877.60 and 2,654.94

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Solution

The fourth proportional to 7,923.90, 11,877.60 and 2,654.94 is: 3,979.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.90 : 11,877.60 = 2,654.94 : x
  2. Step 2: Convert to fraction form
    7,923.90/11,877.60 = 2,654.94/x
  3. Step 3: Cross multiply
    7,923.90x = 11,877.60 × 2,654.94
  4. Step 4: Simplify right side
    7,923.90x = 31,534,315.34
  5. Step 5: Solve for x
    x = 31,534,315.34/7,923.90
  6. Step 6: Final answer
    x = 3,979.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.