Home / 26,655-39,938.73-9,115.26

Finding the Fourth Proportional to 26,655, 39,938.73 and 9,115.26

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Solution

The fourth proportional to 26,655, 39,938.73 and 9,115.26 is: 13,657.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,655 : 39,938.73 = 9,115.26 : x
  2. Step 2: Convert to fraction form
    26,655/39,938.73 = 9,115.26/x
  3. Step 3: Cross multiply
    26,655x = 39,938.73 × 9,115.26
  4. Step 4: Simplify right side
    26,655x = 364,051,908.02
  5. Step 5: Solve for x
    x = 364,051,908.02/26,655
  6. Step 6: Final answer
    x = 13,657.92

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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.