Home / 12,107.35-16,709.12-6,803.47

Finding the Fourth Proportional to 12,107.35, 16,709.12 and 6,803.47

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Solution

The fourth proportional to 12,107.35, 16,709.12 and 6,803.47 is: 9,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.35 : 16,709.12 = 6,803.47 : x
  2. Step 2: Convert to fraction form
    12,107.35/16,709.12 = 6,803.47/x
  3. Step 3: Cross multiply
    12,107.35x = 16,709.12 × 6,803.47
  4. Step 4: Simplify right side
    12,107.35x = 113,679,996.65
  5. Step 5: Solve for x
    x = 113,679,996.65/12,107.35
  6. Step 6: Final answer
    x = 9,389.34

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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.