Home / 13,169.28-19,749.80-4,402.15

Finding the Fourth Proportional to 13,169.28, 19,749.80 and 4,402.15

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Solution

The fourth proportional to 13,169.28, 19,749.80 and 4,402.15 is: 6,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.28 : 19,749.80 = 4,402.15 : x
  2. Step 2: Convert to fraction form
    13,169.28/19,749.80 = 4,402.15/x
  3. Step 3: Cross multiply
    13,169.28x = 19,749.80 × 4,402.15
  4. Step 4: Simplify right side
    13,169.28x = 86,941,543.70
  5. Step 5: Solve for x
    x = 86,941,543.70/13,169.28
  6. Step 6: Final answer
    x = 6,601.84

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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.