Home / 18,465.85-27,698.58-12,528.04

Finding the Fourth Proportional to 18,465.85, 27,698.58 and 12,528.04

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Solution

The fourth proportional to 18,465.85, 27,698.58 and 12,528.04 is: 18,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.85 : 27,698.58 = 12,528.04 : x
  2. Step 2: Convert to fraction form
    18,465.85/27,698.58 = 12,528.04/x
  3. Step 3: Cross multiply
    18,465.85x = 27,698.58 × 12,528.04
  4. Step 4: Simplify right side
    18,465.85x = 347,008,838.73
  5. Step 5: Solve for x
    x = 347,008,838.73/18,465.85
  6. Step 6: Final answer
    x = 18,791.92

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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.