Home / 12,304.70-16,975.38-7,830.92

Finding the Fourth Proportional to 12,304.70, 16,975.38 and 7,830.92

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Solution

The fourth proportional to 12,304.70, 16,975.38 and 7,830.92 is: 10,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.70 : 16,975.38 = 7,830.92 : x
  2. Step 2: Convert to fraction form
    12,304.70/16,975.38 = 7,830.92/x
  3. Step 3: Cross multiply
    12,304.70x = 16,975.38 × 7,830.92
  4. Step 4: Simplify right side
    12,304.70x = 132,932,842.75
  5. Step 5: Solve for x
    x = 132,932,842.75/12,304.70
  6. Step 6: Final answer
    x = 10,803.42

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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.