Home / 13,165.84-19,749.80-4,400.78

Finding the Fourth Proportional to 13,165.84, 19,749.80 and 4,400.78

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Solution

The fourth proportional to 13,165.84, 19,749.80 and 4,400.78 is: 6,601.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.84 : 19,749.80 = 4,400.78 : x
  2. Step 2: Convert to fraction form
    13,165.84/19,749.80 = 4,400.78/x
  3. Step 3: Cross multiply
    13,165.84x = 19,749.80 × 4,400.78
  4. Step 4: Simplify right side
    13,165.84x = 86,914,524.84
  5. Step 5: Solve for x
    x = 86,914,524.84/13,165.84
  6. Step 6: Final answer
    x = 6,601.52

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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.