Home / 13,170.28-19,751.30-4,403.15

Finding the Fourth Proportional to 13,170.28, 19,751.30 and 4,403.15

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Solution

The fourth proportional to 13,170.28, 19,751.30 and 4,403.15 is: 6,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.28 : 19,751.30 = 4,403.15 : x
  2. Step 2: Convert to fraction form
    13,170.28/19,751.30 = 4,403.15/x
  3. Step 3: Cross multiply
    13,170.28x = 19,751.30 × 4,403.15
  4. Step 4: Simplify right side
    13,170.28x = 86,967,936.60
  5. Step 5: Solve for x
    x = 86,967,936.60/13,170.28
  6. Step 6: Final answer
    x = 6,603.35

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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.