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Finding the Fourth Proportional to 9,265.89, 12,794.30 and 8,557.47

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Solution

The fourth proportional to 9,265.89, 12,794.30 and 8,557.47 is: 11,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,265.89 : 12,794.30 = 8,557.47 : x
  2. Step 2: Convert to fraction form
    9,265.89/12,794.30 = 8,557.47/x
  3. Step 3: Cross multiply
    9,265.89x = 12,794.30 × 8,557.47
  4. Step 4: Simplify right side
    9,265.89x = 109,486,795.63
  5. Step 5: Solve for x
    x = 109,486,795.63/9,265.89
  6. Step 6: Final answer
    x = 11,816.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.