Home / 13,278.96-19,930.73-6,709.75

Finding the Fourth Proportional to 13,278.96, 19,930.73 and 6,709.75

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Solution

The fourth proportional to 13,278.96, 19,930.73 and 6,709.75 is: 10,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.96 : 19,930.73 = 6,709.75 : x
  2. Step 2: Convert to fraction form
    13,278.96/19,930.73 = 6,709.75/x
  3. Step 3: Cross multiply
    13,278.96x = 19,930.73 × 6,709.75
  4. Step 4: Simplify right side
    13,278.96x = 133,730,215.62
  5. Step 5: Solve for x
    x = 133,730,215.62/13,278.96
  6. Step 6: Final answer
    x = 10,070.84

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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.