Home / 26,009.86-39,020.94-8,479.69

Finding the Fourth Proportional to 26,009.86, 39,020.94 and 8,479.69

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Solution

The fourth proportional to 26,009.86, 39,020.94 and 8,479.69 is: 12,721.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,009.86 : 39,020.94 = 8,479.69 : x
  2. Step 2: Convert to fraction form
    26,009.86/39,020.94 = 8,479.69/x
  3. Step 3: Cross multiply
    26,009.86x = 39,020.94 × 8,479.69
  4. Step 4: Simplify right side
    26,009.86x = 330,885,377.16
  5. Step 5: Solve for x
    x = 330,885,377.16/26,009.86
  6. Step 6: Final answer
    x = 12,721.54

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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.