Home / 13,319.58-19,991.64-6,750.42

Finding the Fourth Proportional to 13,319.58, 19,991.64 and 6,750.42

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Solution

The fourth proportional to 13,319.58, 19,991.64 and 6,750.42 is: 10,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.58 : 19,991.64 = 6,750.42 : x
  2. Step 2: Convert to fraction form
    13,319.58/19,991.64 = 6,750.42/x
  3. Step 3: Cross multiply
    13,319.58x = 19,991.64 × 6,750.42
  4. Step 4: Simplify right side
    13,319.58x = 134,951,966.49
  5. Step 5: Solve for x
    x = 134,951,966.49/13,319.58
  6. Step 6: Final answer
    x = 10,131.85

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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.