Home / 18,785.24-28,178.13-8,925.53

Finding the Fourth Proportional to 18,785.24, 28,178.13 and 8,925.53

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Solution

The fourth proportional to 18,785.24, 28,178.13 and 8,925.53 is: 13,388.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.24 : 28,178.13 = 8,925.53 : x
  2. Step 2: Convert to fraction form
    18,785.24/28,178.13 = 8,925.53/x
  3. Step 3: Cross multiply
    18,785.24x = 28,178.13 × 8,925.53
  4. Step 4: Simplify right side
    18,785.24x = 251,504,744.66
  5. Step 5: Solve for x
    x = 251,504,744.66/18,785.24
  6. Step 6: Final answer
    x = 13,388.42

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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.