Home / 14,008.86-20,951.28-12,459.69

Finding the Fourth Proportional to 14,008.86, 20,951.28 and 12,459.69

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Solution

The fourth proportional to 14,008.86, 20,951.28 and 12,459.69 is: 18,634.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.86 : 20,951.28 = 12,459.69 : x
  2. Step 2: Convert to fraction form
    14,008.86/20,951.28 = 12,459.69/x
  3. Step 3: Cross multiply
    14,008.86x = 20,951.28 × 12,459.69
  4. Step 4: Simplify right side
    14,008.86x = 261,046,453.90
  5. Step 5: Solve for x
    x = 261,046,453.90/14,008.86
  6. Step 6: Final answer
    x = 18,634.38

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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.