Home / 13,165.85-19,749.80-4,400.79

Finding the Fourth Proportional to 13,165.85, 19,749.80 and 4,400.79

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Solution

The fourth proportional to 13,165.85, 19,749.80 and 4,400.79 is: 6,601.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.85 : 19,749.80 = 4,400.79 : x
  2. Step 2: Convert to fraction form
    13,165.85/19,749.80 = 4,400.79/x
  3. Step 3: Cross multiply
    13,165.85x = 19,749.80 × 4,400.79
  4. Step 4: Simplify right side
    13,165.85x = 86,914,700.34
  5. Step 5: Solve for x
    x = 86,914,700.34/13,165.85
  6. Step 6: Final answer
    x = 6,601.53

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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.