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Finding the Fourth Proportional to 9,265.04, 12,709.62 and 8,762.88

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Solution

The fourth proportional to 9,265.04, 12,709.62 and 8,762.88 is: 12,020.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,265.04 : 12,709.62 = 8,762.88 : x
  2. Step 2: Convert to fraction form
    9,265.04/12,709.62 = 8,762.88/x
  3. Step 3: Cross multiply
    9,265.04x = 12,709.62 × 8,762.88
  4. Step 4: Simplify right side
    9,265.04x = 111,372,874.91
  5. Step 5: Solve for x
    x = 111,372,874.91/9,265.04
  6. Step 6: Final answer
    x = 12,020.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.