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Finding the Fourth Proportional to 12,282.76, 16,950.23 and 6,979.29

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Solution

The fourth proportional to 12,282.76, 16,950.23 and 6,979.29 is: 9,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.76 : 16,950.23 = 6,979.29 : x
  2. Step 2: Convert to fraction form
    12,282.76/16,950.23 = 6,979.29/x
  3. Step 3: Cross multiply
    12,282.76x = 16,950.23 × 6,979.29
  4. Step 4: Simplify right side
    12,282.76x = 118,300,570.74
  5. Step 5: Solve for x
    x = 118,300,570.74/12,282.76
  6. Step 6: Final answer
    x = 9,631.43

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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.