Home / 13,170.66-19,756.98-4,405.58

Finding the Fourth Proportional to 13,170.66, 19,756.98 and 4,405.58

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Solution

The fourth proportional to 13,170.66, 19,756.98 and 4,405.58 is: 6,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.66 : 19,756.98 = 4,405.58 : x
  2. Step 2: Convert to fraction form
    13,170.66/19,756.98 = 4,405.58/x
  3. Step 3: Cross multiply
    13,170.66x = 19,756.98 × 4,405.58
  4. Step 4: Simplify right side
    13,170.66x = 87,040,955.95
  5. Step 5: Solve for x
    x = 87,040,955.95/13,170.66
  6. Step 6: Final answer
    x = 6,608.70

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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.