Home / 14,845.26-20,486.47-8,130.89

Finding the Fourth Proportional to 14,845.26, 20,486.47 and 8,130.89

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Solution

The fourth proportional to 14,845.26, 20,486.47 and 8,130.89 is: 11,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,845.26 : 20,486.47 = 8,130.89 : x
  2. Step 2: Convert to fraction form
    14,845.26/20,486.47 = 8,130.89/x
  3. Step 3: Cross multiply
    14,845.26x = 20,486.47 × 8,130.89
  4. Step 4: Simplify right side
    14,845.26x = 166,573,234.06
  5. Step 5: Solve for x
    x = 166,573,234.06/14,845.26
  6. Step 6: Final answer
    x = 11,220.63

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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.