Home / 14,139.30-19,512.06-8,170.94

Finding the Fourth Proportional to 14,139.30, 19,512.06 and 8,170.94

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Solution

The fourth proportional to 14,139.30, 19,512.06 and 8,170.94 is: 11,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.30 : 19,512.06 = 8,170.94 : x
  2. Step 2: Convert to fraction form
    14,139.30/19,512.06 = 8,170.94/x
  3. Step 3: Cross multiply
    14,139.30x = 19,512.06 × 8,170.94
  4. Step 4: Simplify right side
    14,139.30x = 159,431,871.54
  5. Step 5: Solve for x
    x = 159,431,871.54/14,139.30
  6. Step 6: Final answer
    x = 11,275.80

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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.