Home / 12,687.97-19,032.08-5,668.34

Finding the Fourth Proportional to 12,687.97, 19,032.08 and 5,668.34

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Solution

The fourth proportional to 12,687.97, 19,032.08 and 5,668.34 is: 8,502.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687.97 : 19,032.08 = 5,668.34 : x
  2. Step 2: Convert to fraction form
    12,687.97/19,032.08 = 5,668.34/x
  3. Step 3: Cross multiply
    12,687.97x = 19,032.08 × 5,668.34
  4. Step 4: Simplify right side
    12,687.97x = 107,880,300.35
  5. Step 5: Solve for x
    x = 107,880,300.35/12,687.97
  6. Step 6: Final answer
    x = 8,502.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.