Home / 12,719.43-17,554.46-7,131.51

Finding the Fourth Proportional to 12,719.43, 17,554.46 and 7,131.51

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Solution

The fourth proportional to 12,719.43, 17,554.46 and 7,131.51 is: 9,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.43 : 17,554.46 = 7,131.51 : x
  2. Step 2: Convert to fraction form
    12,719.43/17,554.46 = 7,131.51/x
  3. Step 3: Cross multiply
    12,719.43x = 17,554.46 × 7,131.51
  4. Step 4: Simplify right side
    12,719.43x = 125,189,771.38
  5. Step 5: Solve for x
    x = 125,189,771.38/12,719.43
  6. Step 6: Final answer
    x = 9,842.40

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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.