Home / 12,849.28-17,736.90-8,374.13

Finding the Fourth Proportional to 12,849.28, 17,736.90 and 8,374.13

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Solution

The fourth proportional to 12,849.28, 17,736.90 and 8,374.13 is: 11,559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.28 : 17,736.90 = 8,374.13 : x
  2. Step 2: Convert to fraction form
    12,849.28/17,736.90 = 8,374.13/x
  3. Step 3: Cross multiply
    12,849.28x = 17,736.90 × 8,374.13
  4. Step 4: Simplify right side
    12,849.28x = 148,531,106.40
  5. Step 5: Solve for x
    x = 148,531,106.40/12,849.28
  6. Step 6: Final answer
    x = 11,559.49

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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.