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Finding the Fourth Proportional to 9,152.98, 13,729.97 and 2,913.49

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Solution

The fourth proportional to 9,152.98, 13,729.97 and 2,913.49 is: 4,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,152.98 : 13,729.97 = 2,913.49 : x
  2. Step 2: Convert to fraction form
    9,152.98/13,729.97 = 2,913.49/x
  3. Step 3: Cross multiply
    9,152.98x = 13,729.97 × 2,913.49
  4. Step 4: Simplify right side
    9,152.98x = 40,002,130.30
  5. Step 5: Solve for x
    x = 40,002,130.30/9,152.98
  6. Step 6: Final answer
    x = 4,370.39

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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.