Home / 19,215.42-28,832.03-8,124.69

Finding the Fourth Proportional to 19,215.42, 28,832.03 and 8,124.69

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Solution

The fourth proportional to 19,215.42, 28,832.03 and 8,124.69 is: 12,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.42 : 28,832.03 = 8,124.69 : x
  2. Step 2: Convert to fraction form
    19,215.42/28,832.03 = 8,124.69/x
  3. Step 3: Cross multiply
    19,215.42x = 28,832.03 × 8,124.69
  4. Step 4: Simplify right side
    19,215.42x = 234,251,305.82
  5. Step 5: Solve for x
    x = 234,251,305.82/19,215.42
  6. Step 6: Final answer
    x = 12,190.80

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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.