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Finding the Fourth Proportional to 12,757.77, 17,607.74 and 7,455.69

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Solution

The fourth proportional to 12,757.77, 17,607.74 and 7,455.69 is: 10,290.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.77 : 17,607.74 = 7,455.69 : x
  2. Step 2: Convert to fraction form
    12,757.77/17,607.74 = 7,455.69/x
  3. Step 3: Cross multiply
    12,757.77x = 17,607.74 × 7,455.69
  4. Step 4: Simplify right side
    12,757.77x = 131,277,813.76
  5. Step 5: Solve for x
    x = 131,277,813.76/12,757.77
  6. Step 6: Final answer
    x = 10,290.03

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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.