Home / 18,784.80-28,177.23-5,637.15

Finding the Fourth Proportional to 18,784.80, 28,177.23 and 5,637.15

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Solution

The fourth proportional to 18,784.80, 28,177.23 and 5,637.15 is: 8,455.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.80 : 28,177.23 = 5,637.15 : x
  2. Step 2: Convert to fraction form
    18,784.80/28,177.23 = 5,637.15/x
  3. Step 3: Cross multiply
    18,784.80x = 28,177.23 × 5,637.15
  4. Step 4: Simplify right side
    18,784.80x = 158,839,272.09
  5. Step 5: Solve for x
    x = 158,839,272.09/18,784.80
  6. Step 6: Final answer
    x = 8,455.73

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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.