Home / 12,107.20-16,709.68-6,802.48

Finding the Fourth Proportional to 12,107.20, 16,709.68 and 6,802.48

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Solution

The fourth proportional to 12,107.20, 16,709.68 and 6,802.48 is: 9,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.20 : 16,709.68 = 6,802.48 : x
  2. Step 2: Convert to fraction form
    12,107.20/16,709.68 = 6,802.48/x
  3. Step 3: Cross multiply
    12,107.20x = 16,709.68 × 6,802.48
  4. Step 4: Simplify right side
    12,107.20x = 113,667,264.01
  5. Step 5: Solve for x
    x = 113,667,264.01/12,107.20
  6. Step 6: Final answer
    x = 9,388.40

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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.