Home / 18,578.07-25,639.54-10,618.79

Finding the Fourth Proportional to 18,578.07, 25,639.54 and 10,618.79

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Solution

The fourth proportional to 18,578.07, 25,639.54 and 10,618.79 is: 14,654.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.07 : 25,639.54 = 10,618.79 : x
  2. Step 2: Convert to fraction form
    18,578.07/25,639.54 = 10,618.79/x
  3. Step 3: Cross multiply
    18,578.07x = 25,639.54 × 10,618.79
  4. Step 4: Simplify right side
    18,578.07x = 272,260,736.21
  5. Step 5: Solve for x
    x = 272,260,736.21/18,578.07
  6. Step 6: Final answer
    x = 14,654.95

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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.