Home / 19,219.96-28,833.84-8,126.63

Finding the Fourth Proportional to 19,219.96, 28,833.84 and 8,126.63

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Solution

The fourth proportional to 19,219.96, 28,833.84 and 8,126.63 is: 12,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.96 : 28,833.84 = 8,126.63 : x
  2. Step 2: Convert to fraction form
    19,219.96/28,833.84 = 8,126.63/x
  3. Step 3: Cross multiply
    19,219.96x = 28,833.84 × 8,126.63
  4. Step 4: Simplify right side
    19,219.96x = 234,321,980.61
  5. Step 5: Solve for x
    x = 234,321,980.61/19,219.96
  6. Step 6: Final answer
    x = 12,191.59

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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.