Home / 11,890.20-16,416.50-10,627.21

Finding the Fourth Proportional to 11,890.20, 16,416.50 and 10,627.21

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Solution

The fourth proportional to 11,890.20, 16,416.50 and 10,627.21 is: 14,672.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.20 : 16,416.50 = 10,627.21 : x
  2. Step 2: Convert to fraction form
    11,890.20/16,416.50 = 10,627.21/x
  3. Step 3: Cross multiply
    11,890.20x = 16,416.50 × 10,627.21
  4. Step 4: Simplify right side
    11,890.20x = 174,461,498.79
  5. Step 5: Solve for x
    x = 174,461,498.79/11,890.20
  6. Step 6: Final answer
    x = 14,672.71

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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.