Home / 18,618.14-25,696.96-11,807.76

Finding the Fourth Proportional to 18,618.14, 25,696.96 and 11,807.76

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Solution

The fourth proportional to 18,618.14, 25,696.96 and 11,807.76 is: 16,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.14 : 25,696.96 = 11,807.76 : x
  2. Step 2: Convert to fraction form
    18,618.14/25,696.96 = 11,807.76/x
  3. Step 3: Cross multiply
    18,618.14x = 25,696.96 × 11,807.76
  4. Step 4: Simplify right side
    18,618.14x = 303,423,536.41
  5. Step 5: Solve for x
    x = 303,423,536.41/18,618.14
  6. Step 6: Final answer
    x = 16,297.20

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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.