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Finding the Fourth Proportional to 12,150.40, 16,762.08 and 7,369.60

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Solution

The fourth proportional to 12,150.40, 16,762.08 and 7,369.60 is: 10,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.40 : 16,762.08 = 7,369.60 : x
  2. Step 2: Convert to fraction form
    12,150.40/16,762.08 = 7,369.60/x
  3. Step 3: Cross multiply
    12,150.40x = 16,762.08 × 7,369.60
  4. Step 4: Simplify right side
    12,150.40x = 123,529,824.77
  5. Step 5: Solve for x
    x = 123,529,824.77/12,150.40
  6. Step 6: Final answer
    x = 10,166.73

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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.