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Finding the Fourth Proportional to 15,143.78, 22,705.94 and 6,376.34

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Solution

The fourth proportional to 15,143.78, 22,705.94 and 6,376.34 is: 9,560.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.78 : 22,705.94 = 6,376.34 : x
  2. Step 2: Convert to fraction form
    15,143.78/22,705.94 = 6,376.34/x
  3. Step 3: Cross multiply
    15,143.78x = 22,705.94 × 6,376.34
  4. Step 4: Simplify right side
    15,143.78x = 144,780,648.05
  5. Step 5: Solve for x
    x = 144,780,648.05/15,143.78
  6. Step 6: Final answer
    x = 9,560.41

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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.