Home / 18,860.13-28,252.83-12,922.42

Finding the Fourth Proportional to 18,860.13, 28,252.83 and 12,922.42

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Solution

The fourth proportional to 18,860.13, 28,252.83 and 12,922.42 is: 19,358.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.13 : 28,252.83 = 12,922.42 : x
  2. Step 2: Convert to fraction form
    18,860.13/28,252.83 = 12,922.42/x
  3. Step 3: Cross multiply
    18,860.13x = 28,252.83 × 12,922.42
  4. Step 4: Simplify right side
    18,860.13x = 365,094,870.84
  5. Step 5: Solve for x
    x = 365,094,870.84/18,860.13
  6. Step 6: Final answer
    x = 19,358.03

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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.