Home / 14,139.54-19,514.05-8,761.55

Finding the Fourth Proportional to 14,139.54, 19,514.05 and 8,761.55

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Solution

The fourth proportional to 14,139.54, 19,514.05 and 8,761.55 is: 12,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.54 : 19,514.05 = 8,761.55 : x
  2. Step 2: Convert to fraction form
    14,139.54/19,514.05 = 8,761.55/x
  3. Step 3: Cross multiply
    14,139.54x = 19,514.05 × 8,761.55
  4. Step 4: Simplify right side
    14,139.54x = 170,973,205.30
  5. Step 5: Solve for x
    x = 170,973,205.30/14,139.54
  6. Step 6: Final answer
    x = 12,091.85

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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.