Home / 14,550.50-20,078.74-8,580.80

Finding the Fourth Proportional to 14,550.50, 20,078.74 and 8,580.80

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Solution

The fourth proportional to 14,550.50, 20,078.74 and 8,580.80 is: 11,840.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,550.50 : 20,078.74 = 8,580.80 : x
  2. Step 2: Convert to fraction form
    14,550.50/20,078.74 = 8,580.80/x
  3. Step 3: Cross multiply
    14,550.50x = 20,078.74 × 8,580.80
  4. Step 4: Simplify right side
    14,550.50x = 172,291,652.19
  5. Step 5: Solve for x
    x = 172,291,652.19/14,550.50
  6. Step 6: Final answer
    x = 11,840.94

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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.