Home / 14,580.70-20,131.05-11,217.58

Finding the Fourth Proportional to 14,580.70, 20,131.05 and 11,217.58

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Solution

The fourth proportional to 14,580.70, 20,131.05 and 11,217.58 is: 15,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580.70 : 20,131.05 = 11,217.58 : x
  2. Step 2: Convert to fraction form
    14,580.70/20,131.05 = 11,217.58/x
  3. Step 3: Cross multiply
    14,580.70x = 20,131.05 × 11,217.58
  4. Step 4: Simplify right side
    14,580.70x = 225,821,663.86
  5. Step 5: Solve for x
    x = 225,821,663.86/14,580.70
  6. Step 6: Final answer
    x = 15,487.71

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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.