Home / 18,918.96-26,082.72-13,246.08

Finding the Fourth Proportional to 18,918.96, 26,082.72 and 13,246.08

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Solution

The fourth proportional to 18,918.96, 26,082.72 and 13,246.08 is: 18,261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.96 : 26,082.72 = 13,246.08 : x
  2. Step 2: Convert to fraction form
    18,918.96/26,082.72 = 13,246.08/x
  3. Step 3: Cross multiply
    18,918.96x = 26,082.72 × 13,246.08
  4. Step 4: Simplify right side
    18,918.96x = 345,493,795.74
  5. Step 5: Solve for x
    x = 345,493,795.74/18,918.96
  6. Step 6: Final answer
    x = 18,261.78

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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.