Home / 26,167.79-39,238.56-12,115.76

Finding the Fourth Proportional to 26,167.79, 39,238.56 and 12,115.76

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Solution

The fourth proportional to 26,167.79, 39,238.56 and 12,115.76 is: 18,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,167.79 : 39,238.56 = 12,115.76 : x
  2. Step 2: Convert to fraction form
    26,167.79/39,238.56 = 12,115.76/x
  3. Step 3: Cross multiply
    26,167.79x = 39,238.56 × 12,115.76
  4. Step 4: Simplify right side
    26,167.79x = 475,404,779.51
  5. Step 5: Solve for x
    x = 475,404,779.51/26,167.79
  6. Step 6: Final answer
    x = 18,167.56

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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.