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Finding the Fourth Proportional to 9,297.62, 12,815.97 and 9,113.30

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Solution

The fourth proportional to 9,297.62, 12,815.97 and 9,113.30 is: 12,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,297.62 : 12,815.97 = 9,113.30 : x
  2. Step 2: Convert to fraction form
    9,297.62/12,815.97 = 9,113.30/x
  3. Step 3: Cross multiply
    9,297.62x = 12,815.97 × 9,113.30
  4. Step 4: Simplify right side
    9,297.62x = 116,795,779.40
  5. Step 5: Solve for x
    x = 116,795,779.40/9,297.62
  6. Step 6: Final answer
    x = 12,561.90

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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.