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Finding the Fourth Proportional to 15,179.80, 22,764.22 and 6,415.39

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Solution

The fourth proportional to 15,179.80, 22,764.22 and 6,415.39 is: 9,620.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179.80 : 22,764.22 = 6,415.39 : x
  2. Step 2: Convert to fraction form
    15,179.80/22,764.22 = 6,415.39/x
  3. Step 3: Cross multiply
    15,179.80x = 22,764.22 × 6,415.39
  4. Step 4: Simplify right side
    15,179.80x = 146,041,349.35
  5. Step 5: Solve for x
    x = 146,041,349.35/15,179.80
  6. Step 6: Final answer
    x = 9,620.77

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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.