Home / 12,849.23-17,725.64-8,066.79

Finding the Fourth Proportional to 12,849.23, 17,725.64 and 8,066.79

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Solution

The fourth proportional to 12,849.23, 17,725.64 and 8,066.79 is: 11,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.23 : 17,725.64 = 8,066.79 : x
  2. Step 2: Convert to fraction form
    12,849.23/17,725.64 = 8,066.79/x
  3. Step 3: Cross multiply
    12,849.23x = 17,725.64 × 8,066.79
  4. Step 4: Simplify right side
    12,849.23x = 142,988,975.16
  5. Step 5: Solve for x
    x = 142,988,975.16/12,849.23
  6. Step 6: Final answer
    x = 11,128.21

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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.