Home / 18,676.16-25,777.68-11,126.96

Finding the Fourth Proportional to 18,676.16, 25,777.68 and 11,126.96

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Solution

The fourth proportional to 18,676.16, 25,777.68 and 11,126.96 is: 15,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.16 : 25,777.68 = 11,126.96 : x
  2. Step 2: Convert to fraction form
    18,676.16/25,777.68 = 11,126.96/x
  3. Step 3: Cross multiply
    18,676.16x = 25,777.68 × 11,126.96
  4. Step 4: Simplify right side
    18,676.16x = 286,827,214.25
  5. Step 5: Solve for x
    x = 286,827,214.25/18,676.16
  6. Step 6: Final answer
    x = 15,357.93

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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.