Home / 14,104.20-19,468.09-8,139.77

Finding the Fourth Proportional to 14,104.20, 19,468.09 and 8,139.77

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Solution

The fourth proportional to 14,104.20, 19,468.09 and 8,139.77 is: 11,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.20 : 19,468.09 = 8,139.77 : x
  2. Step 2: Convert to fraction form
    14,104.20/19,468.09 = 8,139.77/x
  3. Step 3: Cross multiply
    14,104.20x = 19,468.09 × 8,139.77
  4. Step 4: Simplify right side
    14,104.20x = 158,465,774.94
  5. Step 5: Solve for x
    x = 158,465,774.94/14,104.20
  6. Step 6: Final answer
    x = 11,235.36

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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.