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Finding the Fourth Proportional to 9,681.54, 14,522.85 and 2,755.50

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Solution

The fourth proportional to 9,681.54, 14,522.85 and 2,755.50 is: 4,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,681.54 : 14,522.85 = 2,755.50 : x
  2. Step 2: Convert to fraction form
    9,681.54/14,522.85 = 2,755.50/x
  3. Step 3: Cross multiply
    9,681.54x = 14,522.85 × 2,755.50
  4. Step 4: Simplify right side
    9,681.54x = 40,017,713.18
  5. Step 5: Solve for x
    x = 40,017,713.18/9,681.54
  6. Step 6: Final answer
    x = 4,133.40

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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.