Home / 12,829.96-19,251.58-9,709.02

Finding the Fourth Proportional to 12,829.96, 19,251.58 and 9,709.02

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Solution

The fourth proportional to 12,829.96, 19,251.58 and 9,709.02 is: 14,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.96 : 19,251.58 = 9,709.02 : x
  2. Step 2: Convert to fraction form
    12,829.96/19,251.58 = 9,709.02/x
  3. Step 3: Cross multiply
    12,829.96x = 19,251.58 × 9,709.02
  4. Step 4: Simplify right side
    12,829.96x = 186,913,975.25
  5. Step 5: Solve for x
    x = 186,913,975.25/12,829.96
  6. Step 6: Final answer
    x = 14,568.55

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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.