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Finding the Fourth Proportional to 14,999.58, 20,698.74 and 8,284.86

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Solution

The fourth proportional to 14,999.58, 20,698.74 and 8,284.86 is: 11,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.58 : 20,698.74 = 8,284.86 : x
  2. Step 2: Convert to fraction form
    14,999.58/20,698.74 = 8,284.86/x
  3. Step 3: Cross multiply
    14,999.58x = 20,698.74 × 8,284.86
  4. Step 4: Simplify right side
    14,999.58x = 171,486,163.08
  5. Step 5: Solve for x
    x = 171,486,163.08/14,999.58
  6. Step 6: Final answer
    x = 11,432.73

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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.