Home / 19,877.80-29,816.67-5,086.72

Finding the Fourth Proportional to 19,877.80, 29,816.67 and 5,086.72

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Solution

The fourth proportional to 19,877.80, 29,816.67 and 5,086.72 is: 7,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.80 : 29,816.67 = 5,086.72 : x
  2. Step 2: Convert to fraction form
    19,877.80/29,816.67 = 5,086.72/x
  3. Step 3: Cross multiply
    19,877.80x = 29,816.67 × 5,086.72
  4. Step 4: Simplify right side
    19,877.80x = 151,669,107.97
  5. Step 5: Solve for x
    x = 151,669,107.97/19,877.80
  6. Step 6: Final answer
    x = 7,630.07

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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.