Home / 14,781.94-20,399.73-8,323.80

Finding the Fourth Proportional to 14,781.94, 20,399.73 and 8,323.80

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Solution

The fourth proportional to 14,781.94, 20,399.73 and 8,323.80 is: 11,487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.94 : 20,399.73 = 8,323.80 : x
  2. Step 2: Convert to fraction form
    14,781.94/20,399.73 = 8,323.80/x
  3. Step 3: Cross multiply
    14,781.94x = 20,399.73 × 8,323.80
  4. Step 4: Simplify right side
    14,781.94x = 169,803,164.86
  5. Step 5: Solve for x
    x = 169,803,164.86/14,781.94
  6. Step 6: Final answer
    x = 11,487.21

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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.