Home / 12,829.10-19,208.89-6,660.14

Finding the Fourth Proportional to 12,829.10, 19,208.89 and 6,660.14

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Solution

The fourth proportional to 12,829.10, 19,208.89 and 6,660.14 is: 9,972.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.10 : 19,208.89 = 6,660.14 : x
  2. Step 2: Convert to fraction form
    12,829.10/19,208.89 = 6,660.14/x
  3. Step 3: Cross multiply
    12,829.10x = 19,208.89 × 6,660.14
  4. Step 4: Simplify right side
    12,829.10x = 127,933,896.64
  5. Step 5: Solve for x
    x = 127,933,896.64/12,829.10
  6. Step 6: Final answer
    x = 9,972.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.