Home / 14,426.22-19,907.79-8,139.18

Finding the Fourth Proportional to 14,426.22, 19,907.79 and 8,139.18

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Solution

The fourth proportional to 14,426.22, 19,907.79 and 8,139.18 is: 11,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,426.22 : 19,907.79 = 8,139.18 : x
  2. Step 2: Convert to fraction form
    14,426.22/19,907.79 = 8,139.18/x
  3. Step 3: Cross multiply
    14,426.22x = 19,907.79 × 8,139.18
  4. Step 4: Simplify right side
    14,426.22x = 162,033,086.21
  5. Step 5: Solve for x
    x = 162,033,086.21/14,426.22
  6. Step 6: Final answer
    x = 11,231.85

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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.