Home / 13,278.77-19,930.46-6,709.56

Finding the Fourth Proportional to 13,278.77, 19,930.46 and 6,709.56

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Solution

The fourth proportional to 13,278.77, 19,930.46 and 6,709.56 is: 10,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.77 : 19,930.46 = 6,709.56 : x
  2. Step 2: Convert to fraction form
    13,278.77/19,930.46 = 6,709.56/x
  3. Step 3: Cross multiply
    13,278.77x = 19,930.46 × 6,709.56
  4. Step 4: Simplify right side
    13,278.77x = 133,724,617.20
  5. Step 5: Solve for x
    x = 133,724,617.20/13,278.77
  6. Step 6: Final answer
    x = 10,070.56

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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.