Home / 12,484.80-17,231.90-8,236.62

Finding the Fourth Proportional to 12,484.80, 17,231.90 and 8,236.62

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Solution

The fourth proportional to 12,484.80, 17,231.90 and 8,236.62 is: 11,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.80 : 17,231.90 = 8,236.62 : x
  2. Step 2: Convert to fraction form
    12,484.80/17,231.90 = 8,236.62/x
  3. Step 3: Cross multiply
    12,484.80x = 17,231.90 × 8,236.62
  4. Step 4: Simplify right side
    12,484.80x = 141,932,570.99
  5. Step 5: Solve for x
    x = 141,932,570.99/12,484.80
  6. Step 6: Final answer
    x = 11,368.43

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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.