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Finding the Fourth Proportional to 12,762.11, 19,147.05 and 6,526.49

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Solution

The fourth proportional to 12,762.11, 19,147.05 and 6,526.49 is: 9,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.11 : 19,147.05 = 6,526.49 : x
  2. Step 2: Convert to fraction form
    12,762.11/19,147.05 = 6,526.49/x
  3. Step 3: Cross multiply
    12,762.11x = 19,147.05 × 6,526.49
  4. Step 4: Simplify right side
    12,762.11x = 124,963,078.22
  5. Step 5: Solve for x
    x = 124,963,078.22/12,762.11
  6. Step 6: Final answer
    x = 9,791.73

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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.