Home / 26,189.12-39,284.94-8,658.56

Finding the Fourth Proportional to 26,189.12, 39,284.94 and 8,658.56

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Solution

The fourth proportional to 26,189.12, 39,284.94 and 8,658.56 is: 12,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,189.12 : 39,284.94 = 8,658.56 : x
  2. Step 2: Convert to fraction form
    26,189.12/39,284.94 = 8,658.56/x
  3. Step 3: Cross multiply
    26,189.12x = 39,284.94 × 8,658.56
  4. Step 4: Simplify right side
    26,189.12x = 340,151,010.09
  5. Step 5: Solve for x
    x = 340,151,010.09/26,189.12
  6. Step 6: Final answer
    x = 12,988.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.