Home / 18,578.30-25,635.69-10,618.83

Finding the Fourth Proportional to 18,578.30, 25,635.69 and 10,618.83

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Solution

The fourth proportional to 18,578.30, 25,635.69 and 10,618.83 is: 14,652.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.30 : 25,635.69 = 10,618.83 : x
  2. Step 2: Convert to fraction form
    18,578.30/25,635.69 = 10,618.83/x
  3. Step 3: Cross multiply
    18,578.30x = 25,635.69 × 10,618.83
  4. Step 4: Simplify right side
    18,578.30x = 272,221,034.04
  5. Step 5: Solve for x
    x = 272,221,034.04/18,578.30
  6. Step 6: Final answer
    x = 14,652.64

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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.