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Finding the Fourth Proportional to 9,220.11, 13,830.11 and 2,646.28

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Solution

The fourth proportional to 9,220.11, 13,830.11 and 2,646.28 is: 3,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.11 : 13,830.11 = 2,646.28 : x
  2. Step 2: Convert to fraction form
    9,220.11/13,830.11 = 2,646.28/x
  3. Step 3: Cross multiply
    9,220.11x = 13,830.11 × 2,646.28
  4. Step 4: Simplify right side
    9,220.11x = 36,598,343.49
  5. Step 5: Solve for x
    x = 36,598,343.49/9,220.11
  6. Step 6: Final answer
    x = 3,969.40

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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.