Home / 26,162.48-39,253.68-12,129.28

Finding the Fourth Proportional to 26,162.48, 39,253.68 and 12,129.28

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Solution

The fourth proportional to 26,162.48, 39,253.68 and 12,129.28 is: 18,198.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,162.48 : 39,253.68 = 12,129.28 : x
  2. Step 2: Convert to fraction form
    26,162.48/39,253.68 = 12,129.28/x
  3. Step 3: Cross multiply
    26,162.48x = 39,253.68 × 12,129.28
  4. Step 4: Simplify right side
    26,162.48x = 476,118,875.75
  5. Step 5: Solve for x
    x = 476,118,875.75/26,162.48
  6. Step 6: Final answer
    x = 18,198.54

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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.