Home / 19,106.39-28,659.52-12,531.04

Finding the Fourth Proportional to 19,106.39, 28,659.52 and 12,531.04

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Solution

The fourth proportional to 19,106.39, 28,659.52 and 12,531.04 is: 18,796.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.39 : 28,659.52 = 12,531.04 : x
  2. Step 2: Convert to fraction form
    19,106.39/28,659.52 = 12,531.04/x
  3. Step 3: Cross multiply
    19,106.39x = 28,659.52 × 12,531.04
  4. Step 4: Simplify right side
    19,106.39x = 359,133,488.52
  5. Step 5: Solve for x
    x = 359,133,488.52/19,106.39
  6. Step 6: Final answer
    x = 18,796.51

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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.