Home / 14,649.86-20,213.61-8,678.54

Finding the Fourth Proportional to 14,649.86, 20,213.61 and 8,678.54

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Solution

The fourth proportional to 14,649.86, 20,213.61 and 8,678.54 is: 11,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.86 : 20,213.61 = 8,678.54 : x
  2. Step 2: Convert to fraction form
    14,649.86/20,213.61 = 8,678.54/x
  3. Step 3: Cross multiply
    14,649.86x = 20,213.61 × 8,678.54
  4. Step 4: Simplify right side
    14,649.86x = 175,424,622.93
  5. Step 5: Solve for x
    x = 175,424,622.93/14,649.86
  6. Step 6: Final answer
    x = 11,974.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.