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Finding the Fourth Proportional to 9,090.90, 12,551.67 and 6,962.67

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Solution

The fourth proportional to 9,090.90, 12,551.67 and 6,962.67 is: 9,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.90 : 12,551.67 = 6,962.67 : x
  2. Step 2: Convert to fraction form
    9,090.90/12,551.67 = 6,962.67/x
  3. Step 3: Cross multiply
    9,090.90x = 12,551.67 × 6,962.67
  4. Step 4: Simplify right side
    9,090.90x = 87,393,136.16
  5. Step 5: Solve for x
    x = 87,393,136.16/9,090.90
  6. Step 6: Final answer
    x = 9,613.25

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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.