Home / 18,400.52-25,336.48-13,869.78

Finding the Fourth Proportional to 18,400.52, 25,336.48 and 13,869.78

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Solution

The fourth proportional to 18,400.52, 25,336.48 and 13,869.78 is: 19,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.52 : 25,336.48 = 13,869.78 : x
  2. Step 2: Convert to fraction form
    18,400.52/25,336.48 = 13,869.78/x
  3. Step 3: Cross multiply
    18,400.52x = 25,336.48 × 13,869.78
  4. Step 4: Simplify right side
    18,400.52x = 351,411,403.57
  5. Step 5: Solve for x
    x = 351,411,403.57/18,400.52
  6. Step 6: Final answer
    x = 19,097.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.