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Finding the Fourth Proportional to 12,240.69, 16,891.49 and 6,935.39

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Solution

The fourth proportional to 12,240.69, 16,891.49 and 6,935.39 is: 9,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.69 : 16,891.49 = 6,935.39 : x
  2. Step 2: Convert to fraction form
    12,240.69/16,891.49 = 6,935.39/x
  3. Step 3: Cross multiply
    12,240.69x = 16,891.49 × 6,935.39
  4. Step 4: Simplify right side
    12,240.69x = 117,149,070.83
  5. Step 5: Solve for x
    x = 117,149,070.83/12,240.69
  6. Step 6: Final answer
    x = 9,570.46

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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.