Home / 13,112.82-19,666.80-3,750.84

Finding the Fourth Proportional to 13,112.82, 19,666.80 and 3,750.84

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Solution

The fourth proportional to 13,112.82, 19,666.80 and 3,750.84 is: 5,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.82 : 19,666.80 = 3,750.84 : x
  2. Step 2: Convert to fraction form
    13,112.82/19,666.80 = 3,750.84/x
  3. Step 3: Cross multiply
    13,112.82x = 19,666.80 × 3,750.84
  4. Step 4: Simplify right side
    13,112.82x = 73,767,020.11
  5. Step 5: Solve for x
    x = 73,767,020.11/13,112.82
  6. Step 6: Final answer
    x = 5,625.56

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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.