Home / 13,246.56-18,278.04-7,944.36

Finding the Fourth Proportional to 13,246.56, 18,278.04 and 7,944.36

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Solution

The fourth proportional to 13,246.56, 18,278.04 and 7,944.36 is: 10,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.56 : 18,278.04 = 7,944.36 : x
  2. Step 2: Convert to fraction form
    13,246.56/18,278.04 = 7,944.36/x
  3. Step 3: Cross multiply
    13,246.56x = 18,278.04 × 7,944.36
  4. Step 4: Simplify right side
    13,246.56x = 145,207,329.85
  5. Step 5: Solve for x
    x = 145,207,329.85/13,246.56
  6. Step 6: Final answer
    x = 10,961.89

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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.