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Finding the Fourth Proportional to 9,072.80, 13,600.99 and 6,300.78

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Solution

The fourth proportional to 9,072.80, 13,600.99 and 6,300.78 is: 9,445.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.80 : 13,600.99 = 6,300.78 : x
  2. Step 2: Convert to fraction form
    9,072.80/13,600.99 = 6,300.78/x
  3. Step 3: Cross multiply
    9,072.80x = 13,600.99 × 6,300.78
  4. Step 4: Simplify right side
    9,072.80x = 85,696,845.77
  5. Step 5: Solve for x
    x = 85,696,845.77/9,072.80
  6. Step 6: Final answer
    x = 9,445.47

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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.